Wirefly Hive is a "push your luck" creature token-maker, meaning that each new Wirefly creature token comes with the risk of losing all the Wirefly creature tokens you've made up to that point
Oops, I just dribbled paint on that face
Remember: back in 2015, cards like Force of Negation, Force of Vigor, Assassin's Trophy, Fatal Push, Karn, the Great Creator, Counterspell, and friends didn't exist (or weren't legal in Modern), and decks were much, much slower and fairer, giving Birthing Pod a leg up on the metagame thanks to the consistency it offered
The official One Piece collectible card game will get a unique set of cards based on the live-action adaptation of the anime
Much like Exclusion Ritual, this doesn't make much sense in Commander where you can only have one copy of any given card