Theostone: Feruk's Instinct
Has a 3% chance to deal ? Bleed damage every 2s for 10s on attack Effect Activation Cooldown: 1s Only one Theostone's effect applies when identical Theostones are engraved.
Theostone: Feruk's Instinct is a Rare theostone engraved into weapons. Combining theostones gives it with 4.41% from Rare stones.
From combining
GodstoneCombine: combining stones of one grade gives one stone of the table, by its chance (out of 100,000,000). Combines on average = 1 ÷ chance; combines for 90% = ⌈ln 0.1 ÷ ln(1 − chance)⌉ — our calculation, each combine independent.
| Combining | Chance of this stone | Combines on average | Combines for 90% |
|---|---|---|---|
| Rare stones | 4.41% | 23 | 52 |
How to get Feruk's Instinct
From each item's acquisition routes in the game (ItemGetRoute), the monsters whose reward tables drop it, and the quest and achievement reward tables. Open an item for the full tables.
Theostone: Feruk's Instinct- In chests
Rare Theostone Chest (Bound)(4.96%),Radiant Theostone Chest (Bound)(4.41%)
Theostone: Feruk's Instinct (Bound)- Sold by
- Black Cloud Merchants(rotating stock)
Theostone: Feruk's Instinct (Bound)- Quest reward
Search Party,Straggler Search,Learning to Let Go,A Traitor Within +2 more- In chests
- Rare Theostone Selection Chest (Bound)(choice),Rare Theostone Chest (Bound)(4.96%),Radiant Theostone Chest (Bound)(4.41%)
Theostone ID 19950010 · data: client 2.0.6.0 (Steam build 25767555, 2026-10-07)