Fire Imp

Fire Imps are a Caster enemy found only in the The Underworld. They shoot three volleys of Burning Spheres which go through tiles, but can be halted by the swing of a weapon.

Fire Imps will teleport after they get hit or after they shoot three Burning Spheres. Fire Imps will also follow you by teleporting if you try to flee (unless you teleport away with a Magic Mirror, reach a depth of 0ft, or die), so they need to be dealt with eventually.

Fire Imps require a target space of 4 blocks high by 3 blocks wide to teleport into a location, while they can spawn in a 3 block high by 2 block wide space that is off screen.

Fire Imps have the highest defense of any NPC, besides the Dungeon Guardian.

Patch Notes
1.0.5: Fire Imps are no longer damaged by lava.

Diablotin de feu Огненный черт