Only in Ultra Sun
SOS Encounter: Route 12
Walk: Route 12 (20%)
Its base catch rate is 45 out of 255 (higher is easier); the catch rate calculator works out your odds with each ball. For the look, the best colour match is Repeat Ball or Luxury Ball.
Evolution: Houndour → Houndoom (Level 24).
Houndoom in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)