Which Jolteon to use, and how to use Quick Feet?

Since Jolteon already has a base speed of 130, you'd be better off just using the volt absorb one. However, if you do want to use the quick feet ability you can purchase either a flame orb or toxic orb from the battle subway for 16 points. Attach this to Jolteon to automatically activate its ability after the first turn. If you want to ensure you don't get another status before the ability is activated, use protect. Other good moves for Jolteon to have are shadow ball, thunderbolt and/or volt switch, and hidden power (ice or grass or fire).