Sturdy is an ability in the Pokémon series that provides its user with a unique defensive advantage. The primary effect of Sturdy is twofold:
One-Hit KO Prevention: Sturdy prevents the Pokémon from being knocked out by a single hit if its HP is full. This means that regardless of the potency of the attacking move, if the Pokémon with Sturdy has full HP, it will always survive with 1 HP. This effect is particularly useful against moves and strategies aimed at defeating the Pokémon in one hit. For example, high-power moves like Hyper Beam or super-effective attacks will leave the Pokémon with Sturdy at 1 HP if it starts the turn with full health.
Immunity to One-Hit KO Moves: Originally, Sturdy's only function was to protect against One-Hit KO moves like Fissure, Sheer Cold, Guillotine, and Horn Drill. These moves are designed to instantly defeat the opponent regardless of its HP or defensive