Waterfiend (The Zamorakian Undercity)
Waterfiend (The Zamorakian Undercity) is a level 111 members monster found in Misthalin, with 9,000 life points. It is weak to bolts (crossbows). It is the top source of Mithril arrowheads and Fishbowl.
“A fiendish embodiment of water.”
Level 111MembersAggressiveAttacks with magic
Updated . Stats and drops from the RuneScape Wiki's monster and drop data (CC BY-NC-SA 3.0), checked 2026-10-09. Wiki page. Item sprites © Jagex.
Combat stats
- Combat level
- 111
- Life points
- 9,000
- Combat XP per kill
- 450
- Max hit
- 1,506
- Armour
- 1,783
- Attack style
- Magic
- Weakness
- Bolts
- Aggressive
- Yes
- Poisonous
- No
Slayer
- Slayer level
- None needed
- Slayer XP per kill
- 600
- Task
- Waterfiends, Demons
- Assigned by
- Raptor, Duradel, Kuradal, Morvran, Laniakea
Where
Misthalin
Ironman notes
- Counts as a Slayer task from Raptor, Duradel, Kuradal, Morvran and Laniakea (task: waterfiends and demons). Killing it on task earns Slayer XP and points.
- Weak to bolts (crossbows): bring that style for faster kills.
- Aggressive: it attacks on sight, which is handy for AFK kills once your gear outclasses it.
- Drops crimson charm, gold charm, green charm and blue charms for Summoning pouches.
- 6 of its drops come noted, so they don't fill your inventory.
- It can also roll the shared rare drop table (gems, key halves and bulk supplies); luck items improve those odds.
Best for
Best drop rate anywhere
Of every monster that drops these, this one gives the most per kill.
- Mithril arrowheads8/128
- Fishbowl4/128
Drops (45)
Most common first. “Best rate” and “#2/#3 rate” compare expected drops per kill with every other monster that drops the item. Rare drop table items are not repeated here.