Fire Imp

The Fire Imp is a Caster enemy found only in the The Underworld. It fires Burning Spheres, which travel through blocks and inflict the On Fire! debuff, but can be halted by the swing of any weapon.

The Fire Imp will pause for a few seconds after firing 3 times, offering a good opportunity for attack, then teleport to another location nearby. It will also pause if it gets hit. It will follow you by teleporting if you try to flee (unless you teleport away with a Magic Mirror, reach a depth of 0ft, or die).

Trivia

 * The Plumber's Hat is a reference to the Mario game series. The likely reason as to why Fire Imps drop this is because, like one of Mario's powerups (see Flower of fire), they shoot fireballs.

History
Diablotin de feu Fire Imp Fire Imp Огненный черт