Houndoom

Houndoom (ヘルガー Hellgar) is a /-type Pokémon, and is the evolved form of Houndour. Houndour will evolve into this Pokémon starting at level 24.

Appearance
Houndoom are a canine-like Pokémon, with a similar appearance to its pre-evolved form Houndour. Largely black, Houndoom have a brown underbelly and muzzle. Around each of its ankles are two sets of bone-like bands. On its back are rib-like structures, appearing like an exoskeleton, that lead up to its neck. In between the two ends of the bone on its neck is a small skull emblem. Instead of having visible ears near the top of its head, Houndoom have large curled horns. Another notable feature is the long, skinny tail which ends in an arrow point.

Special Abilities
Houndoom have the abilities Flash Fire or Early Bird. Flash Fire will power up any of its Fire-type moves if it is hit with a Fire-type move, and Early Bird will cause a quick awakening from Sleep status.

Trivia

 * No other Pokémon share the same type combination as Houndoom and its pre-evolution Houndour.
 * Despite having a pair of horns, it cannot learn Horn attack or Horn drill.