Every ability

Ice Body

If Snow is active, this Pokémon heals 1/16 of its max HP each turn.

Standard ability
11
Pokémon
Hidden ability
9
Pokémon

In detail

If Snow is active, this Pokémon restores 1/16 of its maximum HP, rounded down, at the end of each turn.

Pokémon that can have it

20

Standard ability11Any one caught or hatched may have it

Hidden ability9Only one with its hidden ability has it