Awesome idea, may be a bit tough to code, but it certainly wouldn't be impossible, in my opinion. Here's the one I thought up.
Shokbox- Elec/Elec Brute
Power: Synapse Flash
AoE Damage, FoeSleep, -FoeResist, +Damage
Shokbox overcharges the electricity in his armor and releases it, messing with the nerve signals of enemies around him, while boosting his armor's discharge temporarily.
Here's an idea that could improve upon it though. (Not sure if it's been mentioned.) The ability to modify the power for "Negative Points." Such as -endurance. Have your power deal quite a bit more damage, but slow recharge rate after, or heal for a lot, then not regenerate for a bit?