Super Rod: Poni Wilds (1%, Only in Sun & Moon), Ancient Poni Path (1%, Only in Ultra Sun & Ultra Moon), Poni Breaker Coast (1%, Only in Ultra Sun & Ultra Moon)
Surf: Poni Wilds (10%, Only in Sun & Moon), Ancient Poni Path (10%, Only in Ultra Sun & Ultra Moon), Poni Breaker Coast (10%, Only in Ultra Sun & Ultra Moon)
SOS Encounter: Poni Wilds (Only in Sun & Moon), Poni Breaker Coast (Only in Ultra Sun & Ultra Moon)
Its base catch rate is 25 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 Timer Ball or Safari Ball.
Relicanth in every game · Pokémon Sun, Moon, Ultra Sun & Ultra Moon interactive map (Alola)