Shellbane gryphon

This article has a Slayer task guide here. Information comparing locations for Slayer tasks will be on this page.

This article has a strategy guide. All information on mechanics and strategy will be on this page.

Shellbane gryphon
Released								19 November 2025 (Update)
Members								Yes
Combat level								235
Size								4x4
Examine								A calamity to all tortugan-kind.
League region								N/A
Combat info
XP bonus								+0%
Max hit								22 64 (whirlwinds) 30 (knockback)
Aggressive								Yes
Poisonous								No
Attack style								Melee, Ranged
Attack speed								5 ticks (3.0 seconds)
Respawn time								20 ticks (12 seconds)
Slayer info
Slayer level								51
Slayer XP								400 xp
Category								Gryphons, Bosses
Assigned by
Combat stats
400				160				210				120				100				150
Aggressive stats
+0				+0				+0				+0				+20				? (edit)
Melee defence
+10								+20								+40
Magic defence
+100												50% weakness
Ranged defence
+60								+60								+60
Immunities
Poison								100% resistance
Venom								100% resistance
Cannons								Immune
Thralls								Not immune
Burn								Not immune
Open in DPS calculator
Advanced data
Monster ID								14860
Link								MOID

The shellbane gryphon is the boss version of gryphons found in a cave in the centre of the Great Conch, requiring level 51 Slayer and completion of Troubled Tortugans to kill. As a Slayer boss, it may only be killed while on a gryphons Slayer task. Gryphon Slayer tasks must be unlocked by purchasing the 'Wings Spread' reward from a Slayer master for 80 Slayer Points in order to be assigned them by Nieve/Steve or Duradel/Kuradal, though this unlock is not required for the shellbane gryphon to be assigned as a boss task from those Slayer masters. Konar quo Maten can also assign the shellbane gryphon specifically when she assigns a boss task.

The shellbane gryphon can also be killed off-task only if the player has the elite clue step to kill the gryphon. Dropping the elite clue scroll while in the cave will delete the item. Combat Achievements can still be completed when killing the gryphon via this method, though not all are possible due to some requiring several kills without leaving the cave. The gryphon will also not drop anything if the clue is not in your inventory when it dies.

Elder Nama at the cave entrance enforces these rules, and also acts as a scoreboard for the boss, displaying the player's statistics for the fight as well as global statistics.

The shellbane gryphon drops the tarnished Belle's folly, which can be repaired into Belle's folly with 70 Smithing at the polishing wheel inside the Giants' Foundry.

The shellbane gryphon is a solo instanced fight. Once a Slayer task has been completed, it will no longer respawn, preventing you from fighting it off-task.

The shellbane gryphon is located in a cave in the centre of the Great Conch, north of fairy ring CJQ.

Like normal gryphons, the shellbane gryphon is primarily weak to melee. A tortugan shield is required for the fight, otherwise the player will take heavy damage from its melee attacks.

The shellbane gryphon primarily attacks with melee, but also uses a ranged attack occasionally. It also has three special attacks:

• Knockback - The boss will throw the player backwards, dealing up to 30 unavoidable damage. It is countered by having the player's equipped weight be ≥40kg, and then quickly counter-attacking when it attempts to use the attack. Note that the equipment stats screen shows total weight including inventory, not just equipped weight. The boss will prioritise using its other two special attacks if the player weighs ≥40kg. When stun shows above gryphon (orange birds), click on the gryphon to avoid damage.
• Corrosive spit - An orange blob is launched, which corrodes the player's worn equipment if they do not move one tile away from where they stood. This will deal 3-12 damage 6 times over the course of 32 ticks (19.2s). This can be interrupted by quickly unequipping all items. The amount of damage taken from each hitsplat seems to depend on weight and type of worn equipment.
• Whirlwind - Whirlwinds begin to form at the player's current position every 3 ticks (1.8s), up to a maximum of 5. These can stack and form a more powerful whirlwind, so it's recommended to move one tile every attack in order to avoid whirlwinds stacking and increasing their size resulting in less damage received. A max stack size 5 whirlwind will hit every square in the room for 50-70+ damage.

	Unique drop sound effect
The sound that plays when receiving a unique drop.

In addition to the 100% drops, the player will have two rolls on the drop table, excluding the pre-roll or tertiary tables, which are rolled once.

Drop rates are estimated based on 2,242,326 samples from the Drop Rate Project, unless otherwise cited.

	Item	Quantity	Rarity	Price	High Alch
	Belle's folly (tarnished)	1	1/75	188,317	27,000

	Item	Quantity	Rarity	Price	High Alch
	Big bones	1	Always	238	0
	Gryphon feather	7–10	Always	203–290	63–90

	Item	Quantity	Rarity	Price	High Alch
	Rune claws	1	2 × 10/128	6,377	7,200
	Rune scimitar	1	2 × 8/128	15,029	15,360
	Adamant cannonball	35–50	2 × 8/128	7,350–10,500	3,780–5,400
	Rune cannonball	20–30	2 × 6/128	13,840–20,760	16,800–25,200

	Item	Quantity	Rarity	Price	High Alch
	Raw swordfish	1	2 × 14/128	195	48
	Sweetcorn	1	2 × 10/128	88	5
	Watermelon	1	2 × 10/128	20	28
	Raw sea turtle	1	2 × 4/128	643	120

There is a 15/128 chance of rolling the allotment seed drop table, plus a 5/128 chance of rolling the same table without potato, onion, or cabbage seeds.

	Item	Quantity	Rarity	Price	High Alch
	Potato seed	1–4	2 × 1/17.1	5–20	1–4
	Onion seed	1–3	2 × 1/34.1	4–12	1–3
	Cabbage seed	1–3	2 × 1/68.3	6–18	1–3
	Tomato seed	1–2	2 × 1/37.2	3–6	2–4
	Sweetcorn seed	1–2	2 × 1/74.5	5–10	4–8
	Elkhorn frag	1	2 × 1/128	138	15
	Pillar frag	1	2 × 1/128	640	31
	Strawberry seed	1	2 × 1/148.9	7	10
	Watermelon seed	1	2 × 1/297.9	232	33
	Snape grass seed	1	2 × 1/297.9	14,863	56

There is a 6/128 chance of rolling the herb drop table, plus a 5/128 chance of rolling the combat herb drop table.

	Item	Quantity	Rarity	Price	High Alch
	Grimy guam leaf	1	2 × 1/85.3	195	7
	Grimy marrentill	1	2 × 1/113.8	183	8
	Grimy tarromin	1	2 × 1/151.7	122	9
	Grimy harralander	1	2 × 1/195	291	9
	Grimy ranarr weed	1	2 × 1/248.2	5,270	18
	Grimy irit leaf	1	2 × 1/341.3	1,263	10
	Grimy avantoe	1	2 × 1/455.1	1,362	10
	Grimy kwuarm	1	2 × 1/71.2	1,854	12
	Grimy cadantine	1	2 × 1/89	2,115	13
	Grimy lantadyme	1	2 × 1/118.7	1,234	13
	Grimy dwarf weed	1	2 × 1/92	1,345	14

	Item	Quantity	Rarity	Price	High Alch
	Gryphon feather	35–50	2 × 11/128	1,015–1,450	315–450
	Shark lure	3–5	2 × 10/128	855–1,425	18–30
	Basket	1	2 × 3/128	3	1

There is a 1/128 chance of rolling the gem drop table.

	Item	Quantity	Rarity	Price	High Alch
	Nothing	N/A	2 × 1/256.47; Never[d 1]	N/A	N/A
	Uncut sapphire	1	2 × 1/512; 1/260[d 2]	231	15
	Uncut emerald	1	2 × 1/1,024; 1/520[d 2]	467	30
	Uncut ruby	1	2 × 1/2,048; 1/1,040[d 2]	1,104	60
	Nature talisman	1	2 × 1/5,461.33; 1/2,773.33[d 2]	280	2
	Uncut diamond	1	2 × 1/8,192; 1/4,160[d 2]	2,441	120
	Rune javelin	5	2 × 1/16,384; 1/8,320[d 2]	675	1,200
	Loop half of key	1	2 × 1/16,384; 1/8,320[d 2]	9,679	60
	Tooth half of key	1	2 × 1/16,384; 1/8,320[d 2]	9,771	60
	Rune spear	1	2 × 1/262,144; 1/15,600[d 2][d 3]	11,622	12,480
	Shield left half	1	2 × 1/524,288; 1/31,200[d 2][d 3]	65,036	66,000
	Dragon spear	1	2 × 1/699,050.67; 1/41,600[d 2][d 3]	38,083	37,440

	Item	Quantity	Rarity	Price	High Alch
	Clue scroll (elite)	1	Always[d 1]	Not sold	12
	Reward casket (elite)	1	Always[d 1]	Not sold	30
	Brimstone key	1	1/58[d 2]	Not sold	N/A
	Long bone	1	1/400	Not sold	3
	Jar of feathers	1	1/2,000	Not sold	120,000
	Gull	1	1/3,000	Not sold	N/A
	Curved bone	1	1/5,012.5	Not sold	4
	Clue scroll (elite)	1	1/200[d 3][d 4]	Not sold	12

• Killing the shellbane gryphon is the solution to the Elite cryptic clue: Their bane awaits, but don't be going in there without permission.

There are 7 Combat Achievement tasks (totalling 14 points) available for Shellbane gryphon.

Name	Description	Type	Tier	Comp%
Shellbane Adept	Kill the Shellbane Gryphon 25 times.	Kill Count	Easy (1 pt)	7.2%
Dry Cleaning	Kill the Shellbane Gryphon after clearing its corrosive spit from your armour.	Mechanical	Easy (1 pt)	4.3%
Perfect Shellbane	Kill the Shellbane Gryphon without taking damage.	Perfection	Medium (2 pts)	5.9%
Shellbane Veteran	Kill the Shellbane Gryphon 50 times.	Kill Count	Medium (2 pts)	6.8%
Shellbane Speedrunner	Kill the Shellbane Gryphon 10 times within 12:30 minutes of entering the cave.	Speed	Medium (2 pts)	4.6%
Shellbane Survivor	Kill the Shellbane Gryphon 25 times without leaving the cave.	Stamina	Hard (3 pts)	4.3%
Featherweight Fighter	Kill the Shellbane Gryphon 5 times without leaving the cave, while wearing gear weighing less than 40kg.	Restriction	Hard (3 pts)	4.3%

• The shellbane gryphon is the second boss that players may have to kill as part of an elite clue step, the first being the King Black Dragon.
  • It is also the second Slayer boss that can be killed off-task, the first being the thermonuclear smoke devil due to being required for the Elite Western Provinces Diary. While the thermonuclear smoke devil can only be killed off-task once, the shellbane gryphon can be killed every time the corresponding clue step is rolled. This makes it possible, though very unlikely, to fully obtain its collection log without ever getting a gryphon or shellbane gryphon boss task.
• The head of the shellbane gryphon is modelled after the Bearded vulture.
• The shellbane gryphon was referred to as the Three-headed Gryphon during the Sailing alpha, beta, and stress test.
• The shellbane gryphon had a festive override wearing a Santa hat during the 2025 Christmas event.

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World bosses	The Hueycoatl Scurrius Giant Mole Deranged archaeologist Sarachnis Kalphite Queen Corporeal Beast Gemstone Crab The Barrows Brothers Ahrim the Blighted Karil the Tainted Dharok the Wretched Guthan the Infested Torag the Corrupted Verac the Defiled The Dagannoth Kings Dagannoth Prime Dagannoth Rex Dagannoth Supreme God Wars Dungeon Kree'arra Commander Zilyana General Graardor K'ril Tsutsaroth Nex Moons of Peril Eclipse Moon Blue Moon Blood Moon The Wilderness bosses Revenant maledictus Chaos Fanatic Crazy archaeologist Scorpia King Black Dragon Chaos Elemental Vet'ion (Calvar'ion) Venenatis (Spindel) Callisto (Artio)
Instanced bosses	Amoxliatl Brutus (Demonic) Royal Titans (Branda the Fire Queen) (Eldric the Ice King) Zulrah Vorkath Phantom Muspah The Nightmare (Phosani's Nightmare) Yama Doom of Mokhaiotl Maggot King Mad Angel Sporadic bosses Obor Bryophyta The Mimic Hespori Skotizo The Forgotten Four The Leviathan The Whisperer Vardorvis Duke Sucellus
Slayer bosses	Shellbane gryphon Grotesque Guardians (Dusk) (Dawn) Abyssal Sire Kraken Cerberus Araxxor Thermonuclear smoke devil Alchemical Hydra
Minigame bosses	Crystalline Hunllef Corrupted Hunllef TzTok-Jad TzKal-Zuk Sol Heredit
Skilling bosses	Tempoross Wintertodt Zalcano
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