Gyro Ball is a Steel-type move that was introduced in Generation IV. This attack's power varies. The slower the player's Pokémon is, the more powerful this attack is. The damage calculation for Gyro Ball is as follows: κ G y r o B a l l = 25 × T a r g e t S p e e d U s e r S p e e d {\displaystyle \kappa_{GyroBall} = 25 \times \frac{TargetSpeed}{UserSpeed}} The possible base powers for this move range between κ = 1 and κ = 150. In a Double Battle, Gyro Ball can target any Pokémon that's adjacent
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