The Time of Battle [OP-16] is an English One Piece Card Game booster release with 126+1 card types and a card pool spanning Leaders, Commons, Uncommons, Rares, Super Rares, Secret Rares, Specials, Treasure Rare and DON!! Card. The official page highlights the Three Admirals as this set’s Super Alt-Art feature, giving the release a strong Navy presence and a dramatic battlefield identity. The set is designed as a main booster-style expansion, adding new cards, rarities and illustrated treatments while keeping the standard One Piece booster rhythm of character-driven strategy and iconic manga/anime moments.

The booster box format keeps the release in a sealed display of packs, preserving the standard One Piece opening experience across multiple boosters from the same set.