Uub, Preparing for Another Release

Auto, if you have 4 or more energy, your opponent has 4 or more Z-Energy, and you place 1 blue <Mr. Buu> from your Drop under this card : At the end of a battle in which this card attacks, play 1 blue <Uub> with an original energy cost of 6 or 8 and a power of 30000 or less from your hand on top of this card in Active Mode.
Activate : MainLimit 1, if your Leader is a blue <Uub>, you have 2 or more energy, and you choose 1 of your opponent's Battle Cards : Play this card from your hand and add the chosen card to your opponent's Z-Energy.