Only in Ultra Sun & Ultra Moon
SOS Encounter: Kala’e Bay (15%)
Its base catch rate is 70 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 Heal Ball, Love Ball or Dream Ball.
Evolution: Slowpoke → Slowbro (Level 37) · Slowking.
Slowking in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)