[OP07-091_p1] - Monkey.D.Luffy (One Piece Promotion Cards: Offline Regional 2024 Vol. 3, Finalist)

If I put 5 Character cards with a cost of 4 or more from my trash at the bottom of my deck according to this [When Attacking] effect, what happens to this Character's power?

In this case, this Character's power becomes +1000 according to this [When Attacking] effect.