Golden Frieza, Unexpected Combat

[Blocker] [Auto] When this card is played, add up to 1 blue "Gogeta : Br" card from your Z-Energy to your hand. [Activate:Main] [Limit 1] B, if your Leader is a blue "Gogeta : Br" card and you place 1 of your Z-Energy into its owner's Drop : Play this card from under "Practicing Fusion" in your Battle Area, then choose up to 1 of your opponent's Battle Cards with an energy cost of 4 or less and place it at the bottom of its owner's deck.