|The user hurls an electric orb at the target. The faster the user is than the target, the greater the move's power.|
Electro Ball inflicts more damage the faster the user is compared to the target. Therefore, the larger the relative difference between the user's and target's Speed stat, the greater the damage. Thus, the move takes into account paralysis, boosts or drops to the either Pokémon's Speed through moves such as Agility or String Shot, and items that affect Speed such as the Macho Brace and the Iron Ball.
Electro ball has no effect on pokemon with the ability Bulletproof.