Soulfire Skewer

Soulfire Skewer is the final Cull's Shadow catalyst. It is the reward from the chest at the end of Oblation: Immolation.

Acquisition

The boss is Ir Gohl, who has two phases.

In phase one, kill the three Forgebound Cantor Wizards at the Soulfire pyre corners, then damage Ir Gohl until he retreats to the forge. In phase two, avoid the middle area once he becomes immune, because his hammer slam leaves Soulfire that can kill you instantly. Instead, take Soulfire Worms from whichever pyre is lit and throw them at the green crystals on the island platforms. Once the crystals are active, damage him again. If he becomes immune again, wait at the pyres for new worms to spawn.

After Ir Gohl dies, interact with the Dredgen Lightbearer in the middle of the forge to spawn the chest that holds the catalyst. Some guide pages spell the name "Soulfed Skewer".