More power the slower the user than the target.
No current Reg M-B usage users are indexed for Gyro Ball.
Mega Starmie
Mega Emboar
Mega Scolipede
Mega Golurk
Mega ChesnaughtInflicts regular damage. Power increases with the target’s current Speed compared to the user, given by `1 + 25 * target Speed / user Speed`, capped at 150.
The user tackles the target with a high-speed spin. The slower the user is than the target, the greater the move's power.