Impious Immolator

The Impious Immolator is a post-Moon Lord enemy that spawns in the Hallow and Underworld biomes. Initially, it flies peacefully in one direction and turns around when it hits a block, similarly to the Sunskater. After being attacked, it will fly quickly towards the player while shooting bursts of fire which home in weakly on the player. It drops Unholy Essence, a useful post-Moon Lord crafting material.