Crassian Leviathan
Crassian Leviathan is a level 1,500 members monster found in the Wilderness, with 380,000 life points. It is the top source of The Last Offering.
“A huge beast of the undercurrents. We think it has at least five heads, but we're not 100% sure.”
Level 1500MembersAggressivePoisonousAttacks with ranged
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
- 1500
- Life points
- 380,000
- Combat XP per kill
- 19,000
- Max hit
- 3,000
- Armour
- 2,178
- Attack style
- Ranged
- Weakness
- None
- Immune to
- Stuns
- Aggressive
- Yes
- Poisonous
- Yes
Slayer
- Slayer level
- None needed
- Assigned by
- Not a Slayer task
Where
Wilderness
Ironman notes
- Immune to stuns.
- Its attacks can poison you: carry antipoison or wear something that blocks poison.
- Aggressive: it attacks on sight, which is handy for AFK kills once your gear outclasses it.
- Always drops Reinforced dragon bones: Prayer XP as you go.
- It can also roll the shared rare drop table (gems, key halves and bulk supplies); luck items improve those odds.
Best for
Versions
- Normal mode (south)lvl 1500 · 380,000 LP
- Story mode (north)lvl 1500 · 190,000 LP
Drops (3)
| Item | Quantity | Rarity |
|---|---|---|
| Dungeoneering token | 500 | Always |
| Reinforced dragon bonesBest rate | 1 | Always |
| The Last OfferingOnly source | 1 | 10/100 |
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.