Only in Ultra Moon
Static Encounter: Ultra Space Wilds, Ultra Space
Guide: Ultra Space Wilds: Every Legendary in Ultra Sun & Moon
Its base catch rate is 3 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, Premier Ball or Love Ball.
Palkia in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)