Flame Imp


 * Seemingly endless packs of flame imps lie in wait for those who seek to venture into Magmadar Cavern.

Flame Imps can be found in large packs in Molten Core. They respawn quickly after being killed.

In Hearthstone
The Flame Imp appears as a common card for the Warlock class in Hearthstone. The flavor text reads: "Imps like being on fire. They just do."

Trivia

 * Despite their name, they originally looked more like grell than like imps. After their model was updated, they were given horns and now look like imps.

Speculation
Much like Firekin, they may be flamekin.