The Japanese One Piece TCG OP-13 "Inherited Will" booster box is a 24-pack set that celebrates the game's third anniversary and focuses on the three brothers, Luffy, Ace, and Sabo. It includes various high-rarity cards, special art cards, and manga rares, and it can be used to strengthen existing decks or build powerful new ones for both experienced and new players. 
Set details
Theme: The set's theme is "the Three Brothers," featuring new Leader cards for Luffy, Ace, and Sabo. It also includes cards for other characters, such as Gold D. Roger and the Five Elders.
Rarities: The box features a wide variety of rarities, including Special Rare, Ultra Rare, Alternate Art, Manga Rare, and Special Art cards.
Card types: It contains new cards that can be combined with existing cards to create stronger decks.
Box configuration: A standard Japanese booster box contains 24 packs, with each pack containing 5 to 7 cards.
Impact: The set is considered a powerhouse that is expected to have a significant impact on the One Piece card game meta.