Parasite

Monster
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Parasite
WeakenedRegular
Parasite
Released6 February 2020 (Update)
MembersYes
Combat level57
Size1x1
ExamineA weakened parasite.
Combat info
Max hit10
AggressiveYes
PoisonousNo
Attack styleRanged, Magic
Attack speed4 ticks (2.4 seconds)
Combat stats
4011406060
Aggressive stats
Monster attack bonusMonster strength bonusMonster magic strength bonusMonster ranged strength bonus
+0+0+12+26+12+26
Melee defence
+50+70+10
Magic defence
No elemental weakness
+100No elemental weakness
Ranged defence
LightStandardHeavy
+100+100+100
Immunities
Poison100% resistance
Venom100% resistance
Advanced data
Monster ID9453
LinkMOID

Parasites are enemies impregnated in the player by the Nightmare while fighting her. After ~18 ticks (10.8s), the parasite grows and bursts out of the player, damaging them. Drinking a dose of Sanfew serum or Relicym's balm will weaken the parasite.

If a player doesn't weaken the parasite inside them, they receive significantly more damage when the parasite bursts out of them. The parasite also spawns with higher stats.

If The Nightmare's shield is partly damaged, they target her to restore her shield. In the situation where one or more totems are partially charged, they target the least charged totem to discharge it until the totem is completely discharged. The heal amount is 31 to 50 per attack.

In case there are no suitable targets to heal, parasites attack the player. They alternate Ranged and Magic attacks starting with a Ranged attack. Using protection prayers will fully negate their hits.

If clicking the Player Hitpoints Orb to weaken parasites, it will prioritise Relicym's Balm over Sanfew Serums within the player inventory.

Changes

Date Changes
25 June 2025
(Update)

Parasites now have a 50% elemental weakness to fire spells.

24 February 2021
(Update | poll)

The Nightmare's parasites will now heal her for a random number of hitpoints within a more consistent range. Previously, the parasites could heal between 1 and 80 hitpoints. Now, the range is between 31 and 50.

Source

Content from the Old School RuneScape Wiki (operated by Weird Gloop), licensed under CC BY-NC-SA 3.0.

Source siteOld School RuneScape Wiki
Canonical sourceParasite
Content licenseCC BY-NC-SA 3.0
License statusdeclared
PictureParasite (2) · file details

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