Aether catalyst
“A piece of the cosmos' soul? Or souls belonging to the cosmos?”
MembersTradeable (not for Ironmen)High alch 120 gp
Sources from the OSRS Wiki's drop, shop and recipe data (CC BY-NC-SA 3.0), checked 2026-10-09. Item sprite © Jagex.
As an Ironman: dropped by Abyssal Sire (level 350).
Monster drops
| Dropped by | Level | Quantity | Rarity |
|---|---|---|---|
| Yama | 1238 | 2000 | Always |
| The Leviathan | — | 1500, 2250 | 1/100 |
| Doom of Mokhaiotl | — | 151–400 | 5/104 |
| Abyssal SireEasiest | 350 | 220–270 | 2/139 |
Best rates first, plus the lowest-level monsters that drop it.