Chaos Standard is a brewing format where blocks are the only limitation. Whether we’re pitting old standards against each other or combining blocks that were never Standard-legal together, Chaos Standard is able to provide a fun, chaotic experience while still appealing to more competitive players.
The latest iteration of Chaos Standard consists of Strixhaven, Dominaria, Zendikar, 8th Edition, Rivals of Ixalan, and Ravnica Allegiance. Expressive Iteration is the only banned card.
Here’s a Scryfall link for all legal cards, and a link to the Chaos Standard Podcast by UncleFlacco if you’d like to learn more about the format!
