Profaned Energy

Profaned Energy is a post-Moon Lord enemy that spawns in both the Hallow and Underworld. It has a singular immobile core with two mobile lanterns protruding off of it via chains. The lanterns move somewhat erratically, alternating between swooping in a radius around the core and attempting to hover around one location. The lanterns shoot large Holy Bombs which drift to a stop, then emit smaller Holy Flares every second until it is depleted. Holy Flares slowly drift downward while swooping horizontally to hit the player. Both fireballs will remain active and functioning even after the Profaned Energy is killed. They will also change color to a lime-tinted white at night and inflict Nightwither. Once defeated, it drops Unholy Essence, a useful post-Moon Lord crafting material.