Ability
Snow Warning
On switch-in, this Pokemon summons Snow.
Weather Snowscape
Lasts 5 turns (8 with Icy Rock). Ice-type Pokémon get 1.5× Defense. Snow deals no damage. Blizzard never misses and Aurora Veil can only be used in snow. Activates Abilities such as Slush Rush.
Pokémon with Snow Warning (6)
"hidden" means it is that form's hidden ability. Megas have a fixed ability.
Data: Pokémon Showdown (smogon/pokemon-showdown) · commit d601443 · Data & methodology