Magic: The Gathering's Strixhaven set just collided with Final Fantasy's card crossover, and the result breaks the format in half.
The combo pairs a Strixhaven Commander with a Final Fantasy card in a way that creates an infinite loop. Players can generate unlimited resources, untap permanents, or generate infinite damage with the right setup. The interaction wasn't designed to exist. It slipped through because the cards came from different sets with different design philosophies, and the overlap created something neither development team anticipated.
This happens in card games when powerful mechanics meet. A single card feels balanced in isolation. Add another card from a different universe, and suddenly the game collapses. Wizards of the Coast will likely need to address this before it defines the competitive meta, though the real question is whether they ban the combo piece or the enabler.
For casual Commander players, this is catnip. Breaking the game is part of the appeal. For competitive formats, it's a threat to the ecosystem. Either way, it's a reminder that crossovers carry risks. When you're mixing design spaces, some combinations will slip through that shouldn't exist at all.