Vanillite

Ice Body : This Pokémon heals for 1/16 of its maximum HP after each turn during hail, and it does not take hail damage regardless of type.

Snow Cloak : During hail, this Pokémon has 1.25× its evasion, and it does not take hail damage regardless of type. The evasion bonus does not count as a stat modifier. Overworld: If the lead Pokémon has this ability, the wild encounter rate is halved in snow.

Weak Armor : Whenever a physical move hits this Pokémon, its Speed rises one stage and its Defense falls one stage. This ability triggers on every hit of a multiple-hit move.