Mystery Booster Commander Edition Debuts with Rulebreaker Mechanics and 240-Card Deck Potential
Wizards of the Coast revealed the full contents of Mystery Booster Commander Edition (MBC) on August 3, 2026, following a Gen Con draft. The set introduces 60 new-to-Magic commanders, including 'Whtz, the Bibliophile,' which features a 'Rulebreaker' ability allowing players to build 240-card decks. The release includes reprints, Future Sight frame cards, and playtest cards, with new cards becoming legal in Commander on November 13, 2026.