Uub // Uub & Mr. Buu, Resonating Spirits (BT21-034) - Wild Resurgence

Uub
[Auto] When this card attacks, draw 1 card.
[Awaken] When your life is at 4 or less or there is a blue "Mr. Buu" Z-Battle Card with an energy cost of 2 in play : Draw 1 card, switch up to 1 of your energy to Active Mode, and add cards from your life to your hand until you have 6 life left.

Uub & Mr. Buu, Resonating Spirits
[Auto] When this card attacks, draw 1 card. Additionally, if this card attacks your opponent's Leader and there are no cards in your opponent's Combo Area at the beginning of that battle's Damage Step, draw 1 card.
[Activate:Main] [Once per turn] Add up to 1 Battle Card in your opponent's Drop to their Z-Energy.