OP-15's central theme is Sky Island, featuring many popular Leaders and Characters from there. Additionally, you'll find cards showcasing captivating characters from Dressrosa, the East Blue arc, and more. Notably, a Straw Hat Crew member debuts as a Leader. Previously introduced characters receive cards in new colors, broadening strategic options. OP-15 includes the second half of EB04 cards and offers an extra Bonus Pack with each box purchase. Each pack contains 1 card, with a total of 6 kinds.