one piece op-09 booster box Card Game - OP09 Emperors in the New World Boxes are sealed with a small piece of tape on the top flap One Piece The Four Emperors

Ethersworn Sphinx Now this is a cool card

The twist is a focus on artifact sacrifice you can make as many of those threats as you want if you have artifacts to transform into golem tokens

Recursive Combat Damage Triggers From one spell that draws you a ton of cards in one hit to a combat trigger that spreads out over time and can draw you many

For example, the fact that Assassins Creed cards receive bonuses when a Commander (a type of deck leader card that significantly determines the structure of their respective decks in a specific four-player multiplayer format) attacks an opponent is probably mainly related to the card game needing a working mechanic, not the game franchise universe.