Eevee's PokePower from UF reads:
Whenever you attach an energy card from your hand to Eevee, you may search your deck for a card that evolves from eevee that is the same type as the energy card you attached to eevee. Put that card on eevee.
So if I attach a darkmetal energy to eevee, can I...
I like playing Fox occasionally, but I PWN with Pikachu. I just keep headbutting the comp players a bit, then I'd use thunder and blow them off-screen. If I start to fall of the edge, Quick-Attack would almost always get me back on the ground.