Yama

Monster

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This fight takes place in an instance.
On death, all unprotected items will be moved to a grave outside the instance. Any items left on the ground will be lost.
This article has a strategy guide.
All information on mechanics and strategy will be on this page.

NormalPhase 3
Yama
Released14 May 2025 (Update)
MembersYes
Combat level1,238
Size5x5
ExamineA demon of quite obviously fathomable power. The vicious grin rarely leaves his face.
Combat info
AttributeDemon
XP bonus+82.5%
Max hit46 (auto-attacks)
162 (Meteor Strike)
80 (Shadow Stomp)
AggressiveYes
PoisonousYes (20)
Attack styleMelee (Slash), Ranged, Magic
Attack speed8 ticks (4.8 seconds)
Combat stats
2,500320350225250210
Aggressive stats
Monster attack bonusMonster strength bonusMonster magic strength bonusMonster ranged strength bonus
+50+15+100+65+100+80
Melee defence
+100+80+333
Magic defence
Water elemental weakness
-30[a] or +60[b]50% weakness
Ranged defence
LightStandardHeavy
+333+220+333
Immunities
Poison100% resistance
Venom100% resistance
CannonsImmune
ThrallsNot immune
Advanced data
Monster ID14176
LinkMOID

OccupiedUnoccupied
Yama
Released14 May 2025 (Update)
MembersYes
LocationYama's Domain
League regionKourend Kourend✓
GenderMale
OptionsTalk-to, Challenge
ExamineAtop his throne, always looking down on others.
Map
Advanced data
NPC ID124
LinkMOID

Yama, the Master of Pacts[1] is a powerful demonic duo-focused boss who dwells in Yama's Domain found in the depths of the Chasm of Fire.

In order to access Yama, the player must have completed A Kingdom Divided, then return to the Chasm of Fire after the quest and head to his domain after speaking to the Voice of Yama (who is on the bottom floor of the chasm). After speaking to him, Yama will offer a contract that allows the player to fight an inhibited form as "revenge", granting the player the ability to challenge him.

The base fight places emphasis on movements and prayer switching, and was intended by the developers to be a step up from the post-Desert Treasure II fights of the Forgotten Four[2]. The boss also has tradeable contracts to fight him in a stronger form. These contracts can either allow the player to fight him alone or in some cases, with another player.

Yama is similar to the Royal Titans in that he can be fought alongside a partner in his base form. Several mechanics are easier to handle in a pair, and loot is distributed accordingly based on the player's damage dealt in the fight.

Unique rewards from the fight include the dossier, which provides various contracts (including some exclusive to him only) and an upgrade to Death Charge; the soulflame horn, which has a special attack that boosts allies' next melee attack; and oathplate armour, best-in-slot slash armour. Yama may also drop shards of said armour as a bad luck mitigation of sorts.

Yama also functions as his own scoreboard. When spoken to and asked if he is keeping records on the player, Yama will summon an imp to fetch the statistics, then promptly incinerate the imp.

Group ironman players will lose their prestige upon entering the encounter with a player outside of their group.

Official worlds

The following official worlds are assigned to Yama:

World Location Members Activity
325 United Kingdom 1
Yama
339 United States (west) 1
Yama
343 Germany 1
Yama
394 United States (east) 1
Yama

History

Yama is an opportunistic demon, taking advantage of the power vacuum left after the gods were banished from Gielinor by Guthix.[3] He is worshipped by the Disciples of Yama, a group of Zamorakian cultists who were formerly known as the Disciples of Chaos until Yama gained influence over them,[4] whose initiates participate in a ritual of human sacrifice and staring into a fire so bright that they lose their vision. He also had some influence over the politics of Great Kourend through Sophia Hughes, who was part of the cult, though its not known if she was part of them before Yama's arrival.

He also has a priest-like figure, the Voice of Yama, that he uses to convey messages to, as well as judges to mete punishment out to both his enemies and those who take advantage of his generosity. Following the opening of Kourend to the human kingdoms east of them, Yama originally allowed adventurers to slay his minions as long as they are on a Slayer task for them,[5] although the reason behind was unknown at the time.

Apart from the human followers, Yama has a sizable amount of demonic minions outside of the Voice and judge, mostly consisting of lesser, greater, and black demons, although he also has a few imps in his service.

During the events of A Kingdom Divided, Yama has Sophia targeted for death after she had taken advantage of his generosity. However, he was unable to find her until Sophia summoned a Judge of Yama in order to kill an adventurer who was responsible for her arrest, along with Commander Fullore. The judge quickly burnt Sophia to a crisp before focusing on the two of them. The judge declared that they were Yama's enemies since they had been accused alongside endangering the work of his children. The adventurer challenged the judge, who stated that if they were not guilty, they would be free of their sins. The adventurer defeated the judge, presumably making them innocent for the time being in Yama's eyes. The adventurer was also tasked with severing the connection between Yama and his followers with a device powered by the Dark Altar. However, he caught wind of the plot and had a disciple seize it from them while implanting a memory to make them believe they had succeeded.

After the quest, the adventurer found a group of Shayzien soldiers stationed outside the Chasm, who were on orders to observe activity in the chasm, as the higher-ups were concerned about vile demons being so close to their base. The adventurer ventured inside and was informed by the Voice of Yama that Yama wished to talk to them in person, teleporting them to his domain. There, they asked him how he was still able to communicate with his followers, believing their mission had been a success. Yama revealed that they were quite predictable and had implanted a false memory, which angered the adventurer, who wanted revenge. He agreed to let them fight him under the condition that if they were to lose, their soul would be his for all eternity. The adventurer found this too extreme, so he offered to let them fight a weaker version of him and hold their soul for a year after their final rest if he won. The adventurer agreed to the terms and signed the contract. They also noticed in the contract that there were more contracted fights and asked him about it. Yama explained that his followers needed to be pushed and reformed, and by killing them in his preference, they could potentially find these contracts which would make their fight harder, but for guaranteed rewards. He also told them that they could alternatively acquire them by defeating him in battle.

An alternative version of Yama later learned about the Leagues and with great interest, decided to oversee the next iteration himself, imprisoning The Sage and learning much about the mode from them. He had also planned this so he could guarantee a passage for himself into the next iteration once the event was over. As the adventurer spoke to Yama, he told them that he would be willing to give them some of his powers and treasures as long as they participated.

Transportation

The quickest methods of reaching the Chasm of Fire, where Yama resides, are:

  • Using a chasm teleport scroll, which teleports the player next to the Voice of Yama
  • Fairy ring code DJR then run north-west
    • With 83 Agility, players can slide down a chain by the entrance, placing them next to the Voice of Yama
    • With 73 Agility, players can use the platform edge north of the entrance, then jump gaps to get to the lift to the bottom floor
  • History and hearsay teleport on Kharedst's memoirs/book of the dead, then run north

Contract variants

The fight with Yama can be varied through various contracts, which change his combat stats and add additional mechanics.

Uniquely, stat draining effects which reference Yama's maximum stats only consider his normal form. For example, the accursed sceptre special attack can drain stats twice.

Combat stats
Yama 2,500 320 350 225 250 210
Bloodied blows 3,000 400 402 247 275 241
Glyphic attenuation 2,875 400 402 247 275 241
Other contracts 2,500 400 402 247 275 241
Defensive stats
Yama +100 +80 +333 -30 or +60 50% +333 +220 +333
Yama (Phase 3) +135 +108 +449 +81 50% +449 +297 +449
Glyphic attenuation +666 +666 +80 +666 50% +666 +666 +666
Glyphic attenuation (Phase 3) +666 +666 +108 +666 50% +666 +666 +666
Other contracts +100 +80 +333 -30 or +60 50% +333 +220 +333
Other contracts (Phase 3) +135 +108 +449 +81 50% +449 +297 +449
Other
XP bonus Max hit Attack speed
Yama +82.5% 46 (auto-attacks)

121 (Meteor Strike)

80 (Shadow Stomp)

8 ticks, 7 ticks (Phase 3)
Bloodied blows +87.5% 53 (auto-attacks)

121 (Meteor Strike)

80 (Shadow Stomp)

7 ticks
Glyphic attenuation +87.5% 53 (auto-attacks)

121 (Meteor Strike)

80 (Shadow Stomp)

7 ticks
Other contracts +87.5% 53 (auto-attacks)

121 (Meteor Strike)

80 (Shadow Stomp)

7 ticks

Contracts

See Chasm of Fire § Contracts for information on contracts dropped by demons.

Yama can be offered contracts to alter the nature of the fight. Aquisition contracts can only be acquired from a dossier, which Yama uncommonly drops. The combat contracts for the purifying sigil can be acquired from both this dossier and killing Yama's demons in various manners. Similar in function to awakener's orbs, these contracts are tradeable and are consumed upon attempting the fight.

There are several contracts which modify the fight to some degree:

  1. ^ Both players will benefit from one contract, though Ironmen need to provide their own contract to benefit.

Some of these contracts have a difficulty comparable to that of the awakened variants of the post-quest Desert Treasure II bosses, and defeating Yama with these contracts will grant the player with purifying sigil pieces, which are used to grant the ability to use Radiant Oathplate armour, which is white in colour. Apart from Yama's stats being adjusted, these contracted fights add or modify existing mechanics from the original fight.

The resource and pet contracts allow two players to challenge Yama, as long as one of these two players has the contract to show him. The equipment and sigil contracts can only be completed alone. If Yama is defeated after being shown the sigil or pet contracts, the player will be refunded the contract.

A "custom contract" fight can be started with one player giving Yama 100 noted pineapple pizzas, which initiates a fight the same as the worms/shard/catalyst contracts. As with the other contracts, the pizzas will only last for one attempt, and are not refunded regardless of victory or defeat.

Unlike the awakened Desert Treasure II bosses, successfully completed contracted fights are not tracked separately.

Fight overview

Yama can be fought alone or with another player that has signed the initial contract with him. His stats do not change in either size. When accounting for stat drains, his stats can be drained a maximum of 80 Defence levels (to 145). If using the Emberlight's special attack, his Attack and Strength stats can be drained 120/150 levels respectively to a cap of 200. Not only is Yama considered demonic, he also is more vulnerable to demonbane weapons than other demons; all demonbane modifiers are increased by 20%. This means that Emberlight, for example, has an accuracy and damage increase of 84% against Yama (compared to the usual 70% against demonic creatures).

Yama utilises all forms of combat; swinging his axe with melee, engulfing players in shadow with ranged or fire with magic. Yama has two distinct combat behaviours in which he checks the weapon being used by his current target; if a melee weapon is used, Yama will close the distance. If a magic or ranged weapon is being used, he will instead stay still and attack from afar. This check additionally influences his magic defence. His melee attacks can hit through prayer and will hit everyone within three tiles of his target, while the ranged and magic attacks are fully blocked with prayer. Yama also inflicts poison starting at 20, the highest possible value. He also makes use of shadow and fire-based elemental attacks, which deal heavy damage. These attacks can only be fully blocked by standing on the according glyph to gain temporary protection against such attacks. Though he only focuses on one player, Yama can change aggression to the other player in duo encounters.

Shortly after 66.6% and 33.3% of his health, Yama will slam the pommel of his axe to the ground, teleporting the player to the pockets of land to the side of the arena, where a Judge of Yama must be defeated in order to continue the fight. After the threshold is reached but before he teleports the players, he gains 50% damage resistance to any attacks. The Judge prays against two combat styles, with one of them always being ranged, and reactively prays against the last attack, so players must bring melee and magic in order to kill it efficiently. After the judge is slain, Yama begins the next phase.

In the final phase, Yama will remain static in the centre of the room, increasing all of his defence bonuses and using one of two different combat behaviours; if the target is out of melee range, he will launch three sets of fireballs at everyone in the arena, whereas being in melee range will result in a quick swipe from his axe that additionally summons a flare. Every auto-attack switches between styles (if he used shadow on the previous hit, then he uses magic on the next hit). His ranged and magic attacks will now pierce prayer (although very negligible), while the melee attack deals even more damage. Players must defeat Yama as quickly as possible while handling numerous rapid shadow waves and flares, the latter of which will damage players and heal Yama if not destroyed.

After Yama is defeated, he will teleport back to his throne and snap his fingers, rewarding players for their efforts. He can be immediately challenged again if desired.

Player death

Unlike most other bosses, players who die fighting Yama are sent back to the Voice of Yama instead of their respawn point, where their graves are also located. Players will have their reclamation fee reduced by 75% until they have 10 kills, after which the standard death cost will apply.

Money making

The following money making guides are available for Yama:

MethodHourly profitSkills
Killing Yama (solo)6,420,641
  • Attack 80+ , Strength 80+ , Defence 75+ recommended
  • Magic 82+ , Hitpoints 80+
  • Prayer 77+ recommended for Augury
Killing Yama (Contract of shard acquisition, duo)12,358,045
  • Magic 99 , Hitpoints 99 , Prayer 77+ , Defence 75+
  • Killing Yama (Contract of oathplate acquisition)43,888,402
  • Magic 99 , Hitpoints 99 , Prayer 77+ , Defence 75+
  • Killing Yama (Contract of catalyst acquisition, duo)5,621,529
  • Magic 99 , Hitpoints 99 , Prayer 77+ , Defence 75+
  • Killing Yama (Contract of harmony acquisition)5,540,018
  • Magic 99 , Hitpoints 99 , Prayer 77+ , Defence 75+
  • Drops

    This article has a calculator here.
    Calculators determine experience and costs based on real-time prices from the Grand Exchange Market Watch.

    The following drop rates are provided by Jagex, unless otherwise specified.

    After being defeated, Yama will teleport back to his throne and snap his fingers, after which the rewards will be dropped in front of him. Drops are rolled for until the roll results in a success:

    • If a player deals less than 375 damage (15%), roll the junk drop table.
    • Otherwise, roll 1/120 for the unique drop table (scales with contribution).
    • If unsuccessful, roll 1/12 for the dossier (scales with contribution).
    • If unsuccessful, roll 1/30 for the forgotten lockbox.
    • If unsuccessful, roll 1/15 for 12 oathplate shards (quantity scales with contribution).
    • If unsuccessful, the standard table is rolled.
    • Roll again for tertiary drops: 1/2,500 for Yami and 1/30 for an elite clue.

    If the player is fighting Yama under any contract other than the Contract of familiar acquisition, the standard table will not be rolled. Uniques can still be obtained from any contracted fight alongside the guaranteed rewards.

    Unlike other group bosses, Yama rolls drops for each player individually in a duo encounter, rather than rolling for a unique for the kill. This means that two uniques can be obtained per encounter, with the rate of getting a unique based on contribution. For example, if both players have 50% contribution, both players will roll for the unique drop table at 1/240 chance each, rather than 1/120 and then choosing which player obtains it.

    Contribution

    The drop rates and quantities listed below assume Yama is killed by one player.

    With two players, the quantities of regular items and drop rates of some unique items scale linearly, proportional to damage dealt by a given player, similarly to the Royal Titans. For example, a player who deals 1,000 damage to Yama, or 40% of his health, is eligible to receive 16,000 fire runes, 40% of the maximum.

    If one player dies during a duo encounter, their contribution is not redistributed to the surviving player.

    Unique

    Unique drop sound effect
    The sound that plays when receiving a soulflame horn or oathplate armour piece from Yama.
    Unique drop sound effect
    The sound that plays when receiving a dossier, forgotten lockbox, or oathplate shards from Yama.

    For solo kills, there is a 1/120 (0.83%) chance to receive either a piece of oathplate armour or a soulflame horn. If the armour table roll fails, there is a 1/12 chance to receive a dossier. If the dossier roll fails, there is a 1/30 chance to receive a forgotten lockbox. Finally, if all preceding rolls fail, there is a 1/15 chance to receive oathplate shards. Effective rates are listed below.

    Item Quantity Rarity Price High Alch
    Soulflame horn.png: Yama drops Soulflame horn with rarity 2/600 in quantity 1Soulflame horn12/600[d 1]3,662,862132,000
    Oathplate helm.png: Yama drops Oathplate helm with rarity 1/600 in quantity 1Oathplate helm11/600[d 1]84,651,111120,000
    Oathplate chest.png: Yama drops Oathplate chest with rarity 1/600 in quantity 1Oathplate chest11/600[d 1]88,915,450360,000
    Oathplate legs.png: Yama drops Oathplate legs with rarity 1/600 in quantity 1Oathplate legs11/600[d 1]89,260,019240,000
    Dossier.png: Yama drops Dossier with rarity 1/12.1 in quantity 1Dossier11/12.1[d 1]Not soldN/A
    Forgotten lockbox.png: Yama drops Forgotten lockbox with rarity 1/33 in quantity 1Forgotten lockbox11/33Not sold60
    Oathplate shards.png: Yama drops Oathplate shards with rarity 1/17.07 in quantity 12Oathplate shards12[d 1]1/17.072,217,0247,200
    1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 Scales with contribution; rates and quantities are shown for 100% contribution.

    Supplies

    There is a 15/95.11 (15.8%) chance of getting a supply drop. It will include:

    Item Quantity Rarity Price High Alch
    Pineapple pizza.png: Yama drops Pineapple pizza with rarity 7.5/95.11 in quantity 3-4Pineapple pizza3–47.5/95.112,112–2,816180–240
    Wild pie.png: Yama drops Wild pie with rarity 7.5/95.11 in quantity 3-4Wild pie3–47.5/95.111,902–2,536327–436
    Prayer potion(3).png: Yama drops Prayer potion(3) with rarity 7.5/95.11 in quantity 2Prayer potion(3)27.5/95.1113,442182
    Super restore mix(2).png: Yama drops Super restore mix(2) with rarity 7.5/95.11 in quantity 2Super restore mix(2)27.5/95.116,466216
    Super combat potion(1).png: Yama drops Super combat potion(1) with rarity 7.5/95.11 in quantity 1Super combat potion(1)17.5/95.113,06424
    Zamorak mix(2).png: Yama drops Zamorak mix(2) with rarity 7.5/95.11 in quantity 1Zamorak mix(2)17.5/95.1120690

    Supply quantities do not depend on contribution.

    Weapons and armour

    Item Quantity Rarity Price High Alch
    Rune chainbody.png: Yama drops Rune chainbody with rarity 5/95.11 in quantity 8 (noted)Rune chainbody8 (noted)[d 1]5/95.11235,792240,000
    Battlestaff.png: Yama drops Battlestaff with rarity 4/95.11 in quantity 40 (noted)Battlestaff40 (noted)[d 1]4/95.11288,320168,000
    Rune platebody.png: Yama drops Rune platebody with rarity 3/95.11 in quantity 8 (noted)Rune platebody8 (noted)[d 1]3/95.11308,168312,000
    Dragon plateskirt.png: Yama drops Dragon plateskirt with rarity 2/95.11 in quantity 1Dragon plateskirt12/95.11161,048162,000
    Dragon platelegs.png: Yama drops Dragon platelegs with rarity 2/95.11 in quantity 1Dragon platelegs12/95.11161,029162,000
    1. ^ 1.0 1.1 1.2 Scales with contribution; rates and quantities are shown for 100% contribution.

    Runes

    Item Quantity Rarity Price High Alch
    Blood rune.png: Yama drops Blood rune with rarity 3/95.11 in quantity 400Blood rune400[d 1]3/95.11150,00096,000
    Law rune.png: Yama drops Law rune with rarity 3/95.11 in quantity 150Law rune150[d 1]3/95.1118,45021,600
    Smoke rune.png: Yama drops Smoke rune with rarity 2/95.11 in quantity 350Smoke rune350[d 1]2/95.1122,4004,200
    Soul rune.png: Yama drops Soul rune with rarity 2/95.11 in quantity 500Soul rune500[d 1]2/95.11190,50090,000
    Soul rune.png: Yama drops Soul rune with rarity 2/95.11 in quantity 1000Soul rune1,000[d 1]2/95.11381,000180,000
    Fire rune.png: Yama drops Fire rune with rarity 1/95.11 in quantity 40000Fire rune40,000[d 1]1/95.11200,00080,000
    Wrath rune.png: Yama drops Wrath rune with rarity 1/95.11 in quantity 800Wrath rune800[d 1]1/95.11265,600240,000
    1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Scales with contribution; rates and quantities are shown for 100% contribution.

    Other

    Item Quantity Rarity Price High Alch
    Aether catalyst.png: Yama drops Aether catalyst with rarity 7/95.11 in quantity 850Aether catalyst850[d 1]7/95.11292,400102,000
    Diabolic worms.png: Yama drops Diabolic worms with rarity 7/95.11 in quantity 90Diabolic worms90[d 1]7/95.11201,6004,860
    Barrel of demonic tallow.png: Yama drops Barrel of demonic tallow (full) with rarity 5/95.11 in quantity 1Barrel of demonic tallow (full)15/95.1116,416300
    Chasm teleport scroll.png: Yama drops Chasm teleport scroll with rarity 4/95.11 in quantity 6Chasm teleport scroll6[d 1]4/95.11213,69636
    Emerald.png: Yama drops Emerald with rarity 3/95.11 in quantity 40 (noted)Emerald40 (noted)[d 1]3/95.1117,08012,000
    Ruby.png: Yama drops Ruby with rarity 3/95.11 in quantity 40 (noted)Ruby40 (noted)[d 1]3/95.1133,64024,000
    Diamond.png: Yama drops Diamond with rarity 3/95.11 in quantity 40 (noted)Diamond40 (noted)[d 1]3/95.1165,76048,000
    Onyx bolt tips.png: Yama drops Onyx bolt tips with rarity 1/95.11 in quantity 150Onyx bolt tips150[d 1]1/95.111,206,75090,000
    1. ^ 1.0 1.1 1.2 1.3 1.4 1.5 1.6 Scales with contribution; rates and quantities are shown for 100% contribution.

    Junk

    These items are rolled instead of all the others for players who have contributed less than 15% to the kill. When receiving demon dung a special sound effect will play.

    Item Quantity Rarity Price High Alch
    Cabbage.png: Yama drops Cabbage with rarity 3/11 in quantity 1Cabbage13/11200
    Black bead.png: Yama drops Black bead with rarity 3/11 in quantity 1Black bead13/111,3922
    Spinach roll.png: Yama drops Spinach roll with rarity 3/11 in quantity 1Spinach roll13/114590
    Demon dung.png: Yama drops Demon dung with rarity 2/11 in quantity 1Demon dung12/11Not sold6

    Tertiary

    Item Quantity Rarity Price High Alch
    Clue scroll (elite).png: Yama drops Clue scroll (elite) with rarity 1/30 in quantity 1Clue scroll (elite)11/30[d 1][d 2]Not sold12
    Yami.png: Yama drops Yami with rarity 1/2,500 in quantity 1Yami11/2,500[d 3]Not soldN/A
    1. ^ The elite clue scroll drop rate increases to 1/28 after unlocking the elite Combat Achievements rewards tier.
    2. ^ Clue scrolls will drop as scroll boxes after the completion of X Marks the Spot.
    3. ^ The drop rate is fixed at 1/2500, as long as contribution is higher than 15%.

    Contract

    When defeating Yama in a contract fight, a special drop specific to that contract will be received rather than normal loot. Certain contracts will also be returned on successful kills.

    See § Contracts for a more detailed summary.

    Item Quantity Rarity Price High Alch
    Aether catalyst.png: Yama drops Aether catalyst with rarity Always in quantity 2000Aether catalyst2,000Always688,000240,000
    Diabolic worms.png: Yama drops Diabolic worms with rarity Always in quantity 250Diabolic worms250Always560,00013,500
    Oathplate shards.png: Yama drops Oathplate shards with rarity Always in quantity 45Oathplate shards45Always8,313,84027,000
    Oathplate helm.png: Yama drops Oathplate helm with rarity Always in quantity 1Oathplate helm[d 1]1Always84,651,111120,000
    Oathplate chest.png: Yama drops Oathplate chest with rarity Always in quantity 1Oathplate chest[d 1]1Always88,915,450360,000
    Oathplate legs.png: Yama drops Oathplate legs with rarity Always in quantity 1Oathplate legs[d 1]1Always89,260,019240,000
    Soulflame horn.png: Yama drops Soulflame horn with rarity Always in quantity 1Soulflame horn1Always3,662,862132,000
    Contract of forfeit breath.png: Yama drops Contract of forfeit breath with rarity Always in quantity 1Contract of forfeit breath1Always40,512N/A
    Purifying sigil (top).png: Yama drops Purifying sigil (top) with rarity Always in quantity 1Purifying sigil (top)1AlwaysNot soldN/A
    Contract of glyphic attenuation.png: Yama drops Contract of glyphic attenuation with rarity Always in quantity 1Contract of glyphic attenuation1Always136,802N/A
    Purifying sigil (bottom).png: Yama drops Purifying sigil (bottom) with rarity Always in quantity 1Purifying sigil (bottom)1AlwaysNot soldN/A
    Contract of sensory clouding.png: Yama drops Contract of sensory clouding with rarity Always in quantity 1Contract of sensory clouding1Always209,866N/A
    Purifying sigil (left).png: Yama drops Purifying sigil (left) with rarity Always in quantity 1Purifying sigil (left)1AlwaysNot soldN/A
    Contract of divine severance.png: Yama drops Contract of divine severance with rarity Always in quantity 1Contract of divine severance1Always41,836N/A
    Purifying sigil (right).png: Yama drops Purifying sigil (right) with rarity Always in quantity 1Purifying sigil (right)1AlwaysNot soldN/A
    Contract of bloodied blows.png: Yama drops Contract of bloodied blows with rarity Always in quantity 1Contract of bloodied blows1Always44,069N/A
    Purifying sigil (middle).png: Yama drops Purifying sigil (middle) with rarity Always in quantity 1Purifying sigil (middle)1AlwaysNot soldN/A
    Contract of familiar acquisition.png: Yama drops Contract of familiar acquisition with rarity Always in quantity 1Contract of familiar acquisition1Always115,403N/A
    Yami.png: Yama drops Yami with rarity 1/100 in quantity 1Yami11/100Not soldN/A
    1. ^ 1.0 1.1 1.2 Choice of helm, chest, or legs

    Combat Achievements

    There are 11 Combat Achievement tasks (totalling 55 points) available for Yama.

    NameDescriptionTypeTierComp%
    Back so soon?Defeat Yama without the judge being attacked with the wrong style and without taking more than one instance of damage each time you are exiled from the arena.Mechanical Elite (4 pts)11.7%
    Yama Speed-TrialistDefeat Yama in an average time of under 3:38 over your last four kills.Speed Elite (4 pts)8.5%
    Yama AdeptDefeat Yama once.Kill Count Elite (4 pts)12.7%
    Yama Speed-ChaserDefeat Yama in an average time of under 3:00 over your last four kills.Speed Master (5 pts)3.1%
    Yama VeteranDefeat Yama 50 times.Kill Count Master (5 pts)9.6%
    Shadow dancerDefeat Yama without getting hit by shadows and without being more than one tile away from the center of his shadow crash attack.Mechanical Master (5 pts)8.7%
    Fire fighterDefeat Yama without getting hit by fire and having only killed void flares with special attacks.Mechanical Master (5 pts)10.1%
    No toppings, no drinks, thanksDefeat Yama without anybody healing using anything other than plain pizza and without anybody drinking any potions.Restriction Master (5 pts)4.1%
    Contract ChoreographerDefeat Yama whilst completing 'Shadow Dancer', 'Fire Fighter', 'Back so soon?' and without taking any other avoidable damage.Perfection Grandmaster (6 pts)7.3%
    Contractually UnboundDefeat Yama under the elevated conditions of one of his non-standard contracts.Kill Count Grandmaster (6 pts)1.8%
    Yama Speed-RunnerDefeat Yama in an average time of under 2:34 over your last four kills.Speed Grandmaster (6 pts)0.9%

    Concept art

    Dialogue

    This article on an NPC has an associated dialogue page.
    Click here for a transcript of possible conversations with this NPC.

    Changes

    Date Changes
    14 January 2026
    (Update)

    Attacking Yama with the Eye of Ayak no longer causes the player to turn invisible.

    9 July 2025
    (Update)

    The drop rate for elite clue scrolls has increased from 1/66 to 1/30.

    11 June 2025
    Hotfix
    • A bug in which the Emberlight's special attack was reducing Yama's Strength level instead of Defence has been fixed.
    • Yama's offensive stats can now be drained outside of contracts, capped to level 200 Attack and Strength.
    11 June 2025
    (Update)
    4 June 2025
    (Update)
    • Contractually Unbound is now retroactively completed if players owned a piece of the purifying sigil or radiant oathplate armour before 29 May 2025.
    • A bug in which Shadow dancer would fail if players were hit by Yama's shadow waves as they were being teleported away between phase transitions has been fixed.
    • Void flares that spawn with reduced health during the contract of divine severance and contract of familiar acquisition fights have had their health decreased from 83 to 81.
    • The drop rate for Yami from the contract of familiar acquisition has been increased from 1/250 to 1/100. Additionally, both players will benefit from the contract of whoever used it - unless one of the players is an ironman, in which case they will need to provide their own to benefit from the increased rate.
    29 May 2025
    (Update)
    • Combat Achievements have been added for Yama. Unlike previous Combat Achievement releases, speed times were not tracked on release, and opening the Combat Achievements interface will not automatically complete kill count tasks; players must kill Yama after this update to complete them.
      • Additionally, players who have completed at least one sigil contract before this update will not have automatically completed Contractually Unbound.
    • It was stated that the drop rate for elite clue scrolls were increased from 1/66 to 1/30, but this did not occur.
    • The dragon chainbody has been removed from Yama's collection log entry; this was due to the item originally being intended as a possible drop.
    • Oathplate shards have been added to Yama's collection log entry; shards acquired prior to this update were tracked and thus will count as logged.
    • Players can now bring 100 noted pineapple pizzas to Yama to initiate a fight, identical to the catalyst/shard/worm acquisition fights, as a way to practice the contract fights in exchange for standard loot rolls.
    • The following adjustments have been made for contracted fights:
      • Yama's health is no longer increased for all but two contracts.
      • Yama's health for the contract of bloodied blows has been decreased from 4,125 to 3,000.
      • Yama's health for the contract of glyphic attenuation has been decreased from 3,500 to 2,875.
      • Phase transition thresholds have been changed to trigger at 75% and 50% health instead.
      • Yama is once again vulnerable to demonbane weapons.
      • Shadow pools will now only appear in the contracts of harmony and oathplate acquisition.
      • Void flares in duo-eligible fights no longer always spawn at full health.
      • Void flares will now always take successful hits from the player for the contract of bloodied blows.
      • Magic and ranged prayer-penetration for the contract of bloodied blows has been decreased from 10% to 5%.
      • Damage increases from higher prayer bonuses for the contract of glyphic attenuation have been increased to make the damage bonus larger at higher thresholds.
    23 May 2025
    (Update)
    Hotfix
    • The dossier drop rate has been increased from 1/17 to 1/12.
    • Fixed the void flare bug in the Contract of bloodied blows which caused them to be unaffected by Wretched Strength.
    • Fixed the void flare bug in the Contract of divine severance fight that made it impossible to clear; three of these would spawn at full health in enrage phase, but this was originally intended for a duo fight. This unintentionally carried over to solo, and it was not possible to deal the necessary 420 damage in 20 ticks, as not destroying them completely would result in instant death.
    22 May 2025
    (Update)
    • Yama will no longer become 'inactive' if his target was forcibly logged out.
    • Adjusted the following drops:
      • The dossier drop rate has been increased from 1/20 to 1/17.
      • The quantity of fire runes dropped has been increased from 15,000 to 40,000.
      • Added elite clues to Yama's loot table at a rate of 1 in 66.
      • Yami is now a tertiary drop.
    • Yama will now be in the centre of the arena after each transition phase, rather than wandering around the arena until the player(s) return.
    16 May 2025
    Hotfix

    The drop rates for the soulflame horn and oathplate armour has been decreased by ~30%.

    14 May 2025
    Hotfix

    Players can now acquire the Yami boss pet from defeating the boss.

    Trivia

    • Unlike other bosses, who have a kill count (including those that return after being killed lore-wise), Yama's "kill count" is instead tracked as "success count". Likewise, the "deaths" at the boss are labeled as "Soul Debt".
    • In Hindu mythology, Yama is the god of death and justice. In some Buddhist traditions, Yama is regarded as the king of hell, responsible for judging the dead and dispatching them to the appropriate rebirth. The concept for the boss was originally inspired by these deities.[6]
    • Yama enjoys pizza.[7] He appears to enjoy pineapple on pizza[8], but something spicy would suit him better.[9] This sparked rumours that he would introduce a spicy pizza (like jalapeno) on launch.
      • As part of the contract signed with Yama, if a player shows him a full Pizza of any type he will always take a slice, even if the player refuses to give it to him.
        • If a 1/2 pizza is offered, he will refuse, even if the player offers him pizza that he had already eaten from.
        • When shown a Pineapple pizza, Yama will say "Pineapple pizza, topped with delicious acidic flavours and the angry tears of a thousand nay-sayers. Excellent. Hand me it." If given to Yama, he will then remark about jalapeno pizzas, though no such item exists in-game.
          • Yama's remark "angry tears of a thousand nay-sayers" is a reference to how many people consider pineapple as a topping to be highly controversial.
        • Upon trying to teleport out after offering Yama a pizza, Yama will stop the player, stating "You thought you could escape with your pizza? I'm afraid not (player name)."
        • Logging out will result in the player's pizza being eaten anyway upon logging back in, though there is no dialogue accompanying this.
        • If the player offers a burnt pizza, Yama will question the player's intention as humour, but begrudgingly take it due to the contract's terms before promptly incinerating it at the player's suggestion.
      • He also might enjoy a breakfast of cheese and tomato on sourdough.[10] Or a Tomato and Jalapeño picadillo with cheese on the side for Lunch.
      • It is likely that all mentions of "spicy" and "jalapeño" are a reference to the cut Arceuus spellbook rework spell which appears to be "Bones to jalapeño."
    • Yama will make a comment judging the player's overall performance after a fight or after the player teleports away. Sol Heredit also comments on the player's performance, but only whether they have won or lost.
    • Upon learning that their memories were altered by Yama during A Kingdom Divided, the player will remark that this is the second time someone has modified their memories [11]. It is likely that this is a reference to Icthlarin's Little Helper, as the player is aware of their mind being manipulated through their cat and the Sphinx.
      • While the player's mind is also modified during Forgettable Tale..., the player is not aware of it.
    • All of Yama's contracts have the word "CONTRNCT" written on the item in Morse Code.
      • The second N (-.) is likely meant to be an A (.-), though the order of the dots and dashes is reversed.
    • Yama utilises two different sound effects when a unique drop is awarded. If the player rolls a dossier, forgotten lockbox or oathplate shards, the sound effect used is the same as obtaining uniques from other bosses, such as Araxxor. If the player rolls a soulflame horn or oathplate armour piece, a deeper-sounding variant of this effect is used instead.
    • Yama had a festive override wearing a santa hat during the 2025 Christmas event.
    • An ornament kit for the Soulreaper axe that makes the axe appear visually similar to Yama's axe was released as part of the Demonic Pacts League.

    Notes

    1. ^ If primary target is using melee.
    2. ^ If primary target is using magic.

    References

    1. ^ "More Poll 84 & Yama Prep". Old School RuneScape News. Jagex. 7 May 2025. Archived from the original. "Make sure that you are prepared, because one week today, you'll be able to face the Master of Pacts!" Yama is not referred to with the title "Master of Pacts" in-game, only in newsposts such as this one.
    2. ^ "Yama - Master of Pacts". Old School RuneScape News. Jagex. 17 March 2025. Archived from the original. "While difficulty comparisons are always a struggle, the baseline experience will be a step beyond the Desert Treasure II bosses"
    3. ^ Old School RuneScape. "These Relics Change EVERYTHING!" (in 0:59). YouTube video.
    4. ^ Mori. Old School RuneScape. "He's a demon of some sorts, but he doesn't seem to have any actual presence in Kourend yet. In fact, until recently, he had no connection to the cult. It does sound odd, but back then they were known as the Disciples of Chaos. They were just a small Zamorakian cult of little note."
    5. ^ Disciple of Yama. Old School RuneScape. "My master wishes you not to kill his minions without an agenda. You may only slay within the Chasm that which you have been assigned by a Slayer Master."
    6. ^ Mod West. "Chasm of Fire easter egg (OSBuddy map floor 0)". Reddit. 27 April 2017. Archived from the original on 15 May 2026. Mod West: "Based on the East Asian god Yama and the mouth of sauron from lotr"
    7. ^ JagexArcane. "YamAMA - Ask the devs about Yama!". Reddit. 12 May 2025. Archived from the original on 16 March 2026. JagexArcane: "Trivia? Yama really likes pizza."
    8. ^ JagexArcane. "YamAMA - Ask the devs about Yama!". Reddit. 12 May 2025. Archived from the original on 16 March 2025. JagexArcane: "[Does Yama like pineapple on pizza?] Yes"
    9. ^ JagexArcane. "YamAMA - Ask the devs about Yama!". Reddit. 12 May 2025. Archived from the original on 15 May 2026. JagexArcane: "[...any advice for what kind of pizza would fit Yama?] Something spicy"
    10. ^ JagexArcane. "YamAMA - Ask the devs about Yama!". Reddit. 12 May 2025. Archived from the original on 15 May 2026. JagexArcane: "[If Yama had a favourite breakfast, what would it be?] Tomato & Cheese on a sourdough bread, maybe with some toppings."
    11. ^ Player in Transcript:Yama#First time. Old School RuneScape. "You modified my memory?! That's only the second time someone has done that to me, and I wasn't very happy about it then either!"