X Sp. Def

“An item that sharply boosts the Sp. Def stat of a Pokémon in battle. This effect disappears if the Pokémon leaves the battle.”

“An item that sharply boosts the Sp. Def stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.”

“An item that boosts the Sp. Def stat of a Pokémon during a battle. It wears off once the Pokémon is withdrawn.”

“An item that raises the Sp. Def stat of a Pokémon in battle. It wears off if the Pokémon is withdrawn.”