Rod of Shenanigans

Creature spells you cast gain Aetherstorm. (When you cast this spell from your hand, you may pay 1 energy. If you do, reveal cards from the top of your library until you reveal a card that shares a type with it. You may cast that card without paying it's mana cost. Put all other cards revealed this way on the bottom of your library in a random order.)
{4},{t}: Double the number of {e} (energy counters) on target player.