Iron Ball (item)

Effects

A Pokémon held item that cuts Speed. It makes Flying-type and levitating holders susceptible to Ground moves.

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Diamond/Pearl Platinum	A Pokémon hold item that cuts Speed. It makes Flying-type and levitating holders susceptible to Ground moves.
HeartGold/SoulSilver	A Pokémon held item that cuts Speed. It makes Flying-type and levitating holders susceptible to Ground moves.
Black/White Black 2/White 2	A Pokémon held item that cuts Speed. It makes Flying-type and levitating holders susceptible to Ground moves.
X/Y O.Ruby/A.Sapphire	An item to be held by a Pokémon. It lowers Speed and allows Ground-type moves to hit Flying-type and levitating holders.
Sun/Moon Ultra Sun/Ultra Moon	An item to be held by a Pokémon. It lowers Speed and allows Ground-type moves to hit Flying-type and levitating holders.
Sword/Shield B.Diamond/S.Pearl	An item to be held by a Pokémon. It lowers Speed and allows Ground-type moves to hit Flying types and holders that are levitating.
Scarlet/Violet	An item to be held by a Pokémon. It lowers the holder’s Speed stat and makes the holder vulnerable to Ground- type moves even if it is a Flying type or is levitating.