MBC / ONE-PAGE QUICK REFERENCE

Mystery Booster Commander Draft
cheat sheet.

A table-side reference for Mystery Booster Commander Edition: the draft, deck checks, and the exceptions to keep separate from regular Commander.

MTG Rule Changes editorial reference · Checked October 21, 2026

Use this with MBC boosters. These MBC Draft exceptions do not apply to every Commander game. Follow applicable card text and the event organizer’s instructions.

The draft in five steps

013 boosters20 cards in each pack
02Pick 2Two cards each time
03Left · Right · LeftOne direction per pack
04Build 60+Commander(s) included
05RevealCommanders and fallback colors

Build from your drafted pool, adding basic lands as needed. Then play a Commander game.

MBC Draft vs. regular Commander

Swipe or scroll sideways to compare both formats →

Deckbuilding checks; explicit card text may create exceptions.
Check	MBC Commander Draft	Regular Constructed Commander
Card pool	Drafted cards, plus basic lands.	Build your deck before playing.
Deck size	At least 60, including commander(s).	Exactly 100, including commander(s), unless specific card text changes this.
Repeated names	Multiple drafted copies allowed.	One of each name, except basic lands or explicit card permissions.
Partner	An eligible commander with zero or one color in its identity, without partner already, may be treated as having partner.	No automatic partner grant. Follow the applicable commander-pairing abilities.
Deck colors	Commander identity, with the MBC fallback below and applicable card text.	Commander identity and applicable card text.

The two-color fallback

One matching color: If you drafted for two colors but only have a commander with one of those colors and no others, you may add the other color to your deck’s color identity.

Neither color covered: If no monocolored commander covers either chosen color, you may add both colors and play without a commander.

Declare it: Announce added colors as commanders are revealed. This does not change the commander’s own color identity.

Before the game

Confirm the event uses MBC Commander Draft.
Count the complete deck, including commander(s).
Check commander eligibility and any partner pairing.
Declare fallback colors, if applicable.
Ask the organizer about unusual card text before play.

Rulebreaker changes only the restrictions its text names. It does not automatically waive other deckbuilding rules.

Checked sources

Checked October 21, 2026. MBC-specific partner and fallback: Release Notes. General Commander baseline: September 25, 2026 Comprehensive Rules, sections 903.5 and 903.13.

MTG Rule Changes · mtgrulechanges.com/draft-cheat-sheet/ · Independent player reference