Maybe i couold give electro ball+agility another chance...

Electro Ball inflicts more damage the faster the user is compared to the target. Therefore, the higher user's Speed stat is than the target's, the greater the damage. Base power is calculated as follows: 150 base power, if target's speed is lower or equal to ¼ (25%) of user's speed. 120 base power, if target's speed is greater than ¼ (25%) of user's speed and lower or equal to ⅓ (33%) of user's speed. 80 base power, if target's speed is greater than ⅓ (33%) of user's speed and lower or equal to ½ (50%) of user's speed. 60 base power, if target's speed is greater than ½ (50%) of user's speed. Definitely not Bulbapedia

Electro Ball inflicts more damage the faster the user is compared to the target. Therefore, the higher user's Speed stat is than the target's, the greater the damage. Base power is calculated as follows:

So basically max power is 150.