Uub, Fusion of Two Spirits

[Z-Awaken] B, you have 3 or less life and you place 1 blue "Mr. Buu" from your Drop under this card : Blue "Uub". [Auto] [Once per turn] When this card attacks, draw 1 card, choose up to 1 of your opponent's Battle Cards and add it to its owner's Z-Energy. [Activate:Main] [Once per turn] If your opponent has 5 or more Z-Energy : Choose up to 1 of your blue "Uub" Battle Cards with a blue "Mr. Buu" under it and switch it to Active Mode. [Activate:Battle] [Once per turn] If your opponent has 10 or more Z-Energy : This card gets +10000 power and [Double Strike] for the battle.