Templar Impaler

Templar Impaler is a miniboss-type enemy guarding altars in the second quest in the Darkest Dungeon. He takes 2 actions per turn, one of them usually to use Revelation, bringing protective trinkets is pretty much mandatory. Other action will be spent on one of his 3 attack abilities, all of them equally dangerous. Bringing as many Antivenoms as possible might be a good idea as they apply heavy blight.