Fu All According to Plan BT20-118 - Power Absorbed - Dragonball Super Card Details

[Permanent] While your Leader is a "Evil Saiyan" or "Cumber" card—both black—and you have a "Fu" Z-Battle Card in play, reduce the specified cost of this card in your hand by (-).
[+2] [Activate:Main] [Limit 1] Choose up to 1 of your "Evil Saiyan" or "Cumber" cards—both black and with energy costs of 6 or less—and it gains [Servant] until the end of your opponent's next turn.
[-7] [Activate:Main] (-) : Choose up to 1 of your opponent's Battle Cards with [Servant], switch it to Active Mode, and gain control of it.