Equinox
Boosts Atk or SpAtk to match the higher value.
14 species 6 as main 8 as innate 6 battle AI weight, −2 to 10 — 6 is the untouched default
In detail
Equinox chooses the higher offensive stat for each attack. If Attack is higher, physical and special moves use your Attack stat. If Special Attack is higher, physical and special moves use your Special Attack stat.
Types that carry it
14 species Rock 8 Flying 7 Dark 3 Fairy 2 Fire 2 Dragon 1 Fighting 1 Normal 1
As a main ability
6 speciesSelectable — one of up to three, and only one is active.
As an innate
8 speciesAlways on, alongside whichever main ability is chosen.