My Pokémon White 2 Nuzlocke

Its use in battles is making critical hits more likely. It also makes you get rarer items when breaking rocks with that Pokémon, and in gen 8 it makes wild Pokémon more likely to carry items if the Pokémon with Super Luck is in the front of the party. It has no effect out of battle in SV.

Most out of battle Ability effects were removed in SV for some reason.