Corrupted Boar Tusk is a Shroud material that comes off the Fell Boars roaming inside the fog. These are the corrupted boars that glow with blue Shroud light, and they are concentrated in the Shroud of the Revelwood, with a smaller number in the Shroud of the Blackmire. In the game, the item reads as “A jagged tusk that’s been tainted by the Shroud. Pulsing with faint traces of toxic energy.”
Quick answer: Kill Fell Boars inside the Shroud. Each one drops 2 Corrupted Boar Tusks, so eight kills cover the 15 the Flame Altar upgrade needs.
Farming route from the Ancient Spire in the Revelwood



Get out of the Shroud before the timer expires.
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The tusk feeds into 15 recipes in total. The biggest single demand comes from the Flame Altar jump from level 3 to level 4, which calls for 15 Corrupted Boar Tusk alongside several other materials.
| Material | Amount |
|---|---|
| Corrupted Boar Tusk | 15 |
| Goo | 15 |
| Spark | 10 |
| Indigo Plant | 15 |
| Amber | 15 |
| Copper Ore | 15 |
| Fell Wispwyvern Head | 1 |
Beyond the altar, the tusk is used by the Alchemist for spells. Ice Bolt II needs 2 Glow Dust and 3 Corrupted Boar Tusk, and Eternal Fireball II needs 25 Charcoal, 3 Gold Bars, 10 Green Vitriol Dust and 15 Corrupted Boar Tusk.
Several trousers also call for 2 tusks each:
- Healer Pants and Mage Trousers (Alchemist)
- Ranger Trousers and Cutthroat Trousers (Hunter)
- Tank Trousers (Blacksmith)






