one piece tcg op07 booster box OP14 The Azure Sea's Seven Japanese – 29 Commons One Piece OP07 500 Years

For the most part, Lesson cards were not all that strong or efficient enough to see main deck play in competitive formats like Standard or Pioneer

OfficiallyUnnumbered Promotional cards, they are often regarded as additions to the Vending Machine collection and dubbed "Series 00"

Also foretell at 1G, so that's kind of nice so you can get it out early

While youll need to be wary of artifact removal, Black Crystal should fit nicely into the majority of black decks in Commander

With an easy way to grab a Supporter (Scott, Castaway) and assuming you will not have your hand thrown out by next turn, this can be a fantastic recovery card that adds plus 40 damage to your attack when behind on prizes