Monkey.D.Luffy (ST26-005)

[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.

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