Uub, Symbol of Hope (Power Booster)

[Auto] When you play or combo with this card, if your Leader Card is a green "Shenron" card, choose up to 3 [Dragon Ball] cards from your deck, place them in your Drop Area, then shuffle your deck. If you placed cards in your Drop Area, choose up to 1 of your opponent's Battle Cards with an energy cost of 1 and KO it.