S3Mystery Booster Commander Wiki

MBC Game Changes

Mystery Booster Commander game changes — every article in the changes section, written against the official release notes and kept current.

Master Overview

Mystery Booster Commander Game Changes: Every Rule Difference Explained

Every Mystery Booster Commander game change in one place: the two-cards-per-pass draft, 60-card decks with duplicates, the expanded partner rule, the color identity safety valve, Rulebreaker commanders, and all legality dates.

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Timeline

Mystery Booster Commander Legality Dates: Commander, Eternal Formats and Limited-Only Cards

The complete Mystery Booster Commander legality timeline: new cards hit Commander on November 13, 2026 and eternal formats on January 1, 2027, reprints keep their legality, and playtest and acorn cards never leave MBC Limited.

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