Mr. Buu, Majin Defender (BT21-039) [Wild Resurgence]

Product Details

[Blocker]
[Z-Stack 1] Blue "Uub" Battle Card with an energy cost of 3.
[Permanent] If your Leader is a blue "Uub", your opponent has a Leader who is a Z-Leader, has 3 or more Z-Energy, or has a Z-Battle Card in play, and this card would be removed from a Battle Area, you may play 1 blue "Uub" with an energy cost of 3 from under this card on top of this card in Active Mode instead.
[Auto] When this card is played, your opponent draws 1 card and adds 1 card from their hand to their Z-Energy.