The Pokémon cannot be knocked out by a single hit as long as its HP is full. One-hit KO moves will also fail to knock it out.
When this Pokémon is at full HP, any hit that would knock it out will instead leave it with 1 HP. Regardless of its current HP, it is also immune to the one-hit KO moves: fissure, guillotine, horn drill, and sheer cold. If this Pokémon is holding a focus sash, this ability takes precedence and the item will not be consumed.
42 Pokemon can have this ability
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