Gyro Ball

Gyro Ball
Description:	It calculates its damage based on the comparative difference between the user and target's speed; the bigger the disparity between their speed, the more the damage output is upscaled.
Type    Steel	Category    Physical	Base Power	Accuracy    100%
Availability Level-up - read the list of compatible Pokémon below. TM74
Pokémon that learn it via level-up: # Pokémon  Level  027         Sandshrew 33 028         Sandslash 45 039         Jigglypuff 37 081         Magnemite 54 082         Magneton 60 100         Voltorb 43 101         Electrode 51 109         Koffing 37 120         Staryu 37 157         Typhlosion --- 204         Pineco 42 205         Forretress 50 237         Hitmontop 42 241         Miltank 41 436         Bronzor 35 437         Bronzong 38 462         Magnezone 60 463         Lickilicky 61 Bold indicates the Pokémon gains STAB from the move. --- indicates the Pokémon learns the move instinctively.

Notes

Damage Formula: Base Power = 25 * (TargetSpeed / UserSpeed)