Monkey.D.Luffy (SP)

[On Play]/[When Attacking] DON!! −2 (You may return the specified number of DON!! cards from your field to your DON!! deck.): If your Leader is multicolored and your opponent has 5 or more DON!! cards on their field, your {Straw Hat Crew} type Leader's base power becomes 7000 until the end of your opponent's next End Phase.