• Ruby, Sapphire, and Emerald

 > Raises the critical-hit ratio during one battle.

 • FireRed and LeafGreen

 > Raises the critical-hit ratio of POKéMON in battle. Wears off if the POKéMON is withdrawn.

 • Diamond, Pearl, and Platinum

 > An item that raises the critical-hit ratio of a Pokémon in battle. It wears off if the Pokémon is withdrawn.

 • HeartGold and SoulSilver

 > An item that raises the critical-hit ratio of a Pokémon in battle. It wears off if the Pokémon is withdrawn.

 • Black and White

 > It raises the critical-hit ratio greatly. It can be used only once and wears off if the Pokémon is withdrawn.

 • Black 2 and White 2

 > It raises the critical-hit ratio greatly. It can be used only once and wears off if the Pokémon is withdrawn.

 • X and Y

 > An item that raises the critical-hit ratio greatly. It can be used only once and wears off if the Pokémon is withdrawn.

 • Generation VII

 > An item that raises the critical-hit ratio greatly. It can be used only once and wears off if the Pokémon is withdrawn.