Ragged Caster

Ragged Casters are an enemy that can be found in the dungeon during Hardmode, after defeating Plantera. They attack in quick bursts, rapidly firing spectre bolts before teleporting. Unlike the other Hardmode dungeon casters, the Ragged Caster will not teleport immediately after being hit, much like the pre-hardmode Dark Caster. They are immune to the Poisoned and Venom debuffs and only spawn in dungeons with a Slab Wall. They can also inflict the Blackout Debuff.

Trivia

 * Annoying.