Undead Catalyst

The Undead Catalyst is a item that is an  drop from any Revenant Horror that is  or above. This extends to Revenant Sycophants as well. The Undead Catalyst is used in the crafting of the Revenant Falchion. Note that the player will receive one of this item when collecting rewards.

Despite its rarity, usually the Undead Catalyst isn't worth more than 2k at the Auction House.