One Piece: The Worlds Strongest Warriors Booster Box (OP-17)

The One Piece Card Game fourth anniversary expansion, The World’s Strongest Warriors (OP-17), is set to release on August 28, 2026. Themed around the Elbaph arc and the original Four Emperors, OP-17 promises to exceed all of our normal expectations for a One Piece set. On the gameplay side, that means powerful new cards that will completely remake the format in their image. On the collectibility side, that means more super-rare alternate-art cards than ever, including rarities and treatments we’ve never seen before.