Hit, Deadly Vanguard

If the Battle Card being played has an energy cost of 5 or less, it is returned to its owner's hand instead of being played, then play this card.
During your opponent's turn, reduce the energy cost of this card in your hand by 2.
This card can't be returned to your hand by your skills.
When you play this card, choose up to 1 of your opponent's Battle Cards with an energy cost of 5 or less and return it to its owner's hand.