Majin Buu, the Neverending Absorber

[Union-Absorb] [Once per turn] Choose 1 card under your "Majin" Leader Card and place it under this card: Play up to 1 mono-green "Majin Buu" card with an energy cost of 4 and 15000 power from your deck or Drop Area on top of this card, then shuffle your deck if you looked-through it. [Auto] When this card is played, look at up to 5 cards from the top of your deck, add up to 1 green "Majin" card with an energy cost of 5 or less among them to your hand, then shuffle your deck.