Momentum
Contact moves use the Speed stat for damage calculation.
12 species 11 as main 1 as innate 6 battle AI weight, −2 to 10 — 6 is the untouched default
In detail
Contact moves use Speed stat for damage instead of Attack/Special Attack. Choice Scarf does not affect this ability.
Types that carry it
12 species Electric 4 Normal 3 Flying 2 Grass 2 Bug 1 Poison 1 Psychic 1 Water 1
As a main ability
11 speciesSelectable — one of up to three, and only one is active.
As an innate
1 speciesAlways on, alongside whichever main ability is chosen.