SILPH//OS

Sturdy

Prevents being KOed from full HP, leaving 1 HP instead. Protects against the one-hit KO moves regardless of HP.

Immune to One-Hit KO Moves
Mechanics

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.

Metrics
Trigger
Passive
Introduced
Gen III
Roster
39Pokémon
9Hidden Ability
GenEffect
III–IVDoes not prevent regular KOs from full HP.