Donquixote Doflamingo - OP07-048 - 500 Years in the Future

[Activate: Main] [Once Per Turn] ➁(You may rest the specified number of DON!! cards in your cost area.): Reveal 1 card from the top of your deck. If that card is a{The Seven Warlords of the Sea}type Character card with a cost of 4 or less, you may play that card rested. Then, place the rest at the bottom of your deck.