All 7 Rulebreaker Commanders in Mystery Booster Commander Edition

Every announced Mystery Booster Commander Rulebreaker, one by one: Seluma, Whtz, The Everforger, Maular, Tolabow, The Unluckiest Planeswalker and Valko Indorian — what rule each breaks and what it means for your deck.

Rulebreaker is the ability word everyone is arguing about, and the argument starts with what the word actually does. A Rulebreaker ability changes deck construction — and only deck construction. It applies only while that card is your commander, it takes effect only before the game begins, and it relaxes exactly the one construction rule it names. It does not suspend format rules: the 100-card singleton requirement in constructed Commander, and the other structural rules of whatever you are playing, stay fully in force. Once the game starts, the card runs as a normal commander. That framing comes straight from the official release notes, and it is the measuring stick for all seven cards below. The format's other construction overhauls — the auto-partner rule and the color identity safety valve — are covered in partner and color identity changes, and the whole rule landscape on the game changes overview.

What "Any Color Identity" Means Here

Six of the seven Rulebreakers open one card category to any color identity. The phrase is precise: normally every card in your deck must fall inside your commander's identity. A Rulebreaker that grants "angels of any color identity" means angel cards may come from outside that identity — all five colors and colorless — while everything else still follows the normal restriction. It is a targeted exception, not a blanket unlock: you are playing a white-identity deck whose angel slot ignores identity, not five-color goodstuff with a mono-white legend.

Seluma, Light of Aysen

Breaks: color identity restriction on angels.

Seluma is the cleanest example of the pattern: a commander whose tribal category — angels — becomes identity-agnostic. Angels pile up in white with meaningful splashes across the other colors, and every off-identity angel that was previously uncastable becomes legal the moment she leads the deck. In a 60-card MBC pool that flexibility is worth more than in a 100-card singleton list: the pool is small enough that a category exception can rescue half your pulls.

Whtz, the Bibliophile

Breaks: the deck-size maximum — and pays you for going big.

Whtz is the odd one out — the one Rulebreaker that does not touch color identity at all. There is no deck-size cap while Whtz leads, and the card rewards the commitment: once you cross the 200-plus card threshold, its abilities cost less. Every other rule still applies — the format's deck minimum is a floor, and singleton rules in constructed Commander are untouched. Whtz simply removes the ceiling and prices the deck at a discount. It also has the least relevance to MBC Limited itself, where your pool is exactly the 60 cards you drafted — it aims at players who buy a Festival in a Box, crack everything, and build the biggest legal pile they can.

The Everforger

Breaks: color identity restriction on artifact creatures and Equipment.

The Everforger extends the any-identity exception to artifact creatures and Equipment. Because artifacts skew colorless already, the practical value is in the exceptions — the artifact creatures and Equipment printed with colored mana costs or color indicators, normally locked behind specific commanders. In MBC, where the 2,000-plus card historical pool guarantees a deep and weird artifact spread, an identity-free artifact category is a genuine consistency tool.

Maular, the Next Evolution

Breaks: color identity restriction on creatures with mana value 7 or greater.

Maular carves its exception by mana value, not card type: creatures costing seven and up may come from any color identity. The deckbuilding read: big finishers are the most color-scattered slot in the game, and a MBC draft pool of 60 cards will routinely hand you haymakers in colors your commander cannot legally use. Maular converts those dead pulls into live ones — and the floor is real, since only 7-plus creatures qualify and the cheap support still has to fit your identity.

Tolabow, Loch Rascal

Breaks: color identity restriction on instants and sorceries, by one color.

Tolabow is the narrowest and most surgical Rulebreaker: your instant and sorcery slots may include cards of one designated additional color. Not any color — one, chosen as part of deck construction. One detail is unique to this card: the release notes state Tolabow's Oracle text has already been updated in Gatherer, so the version of record is the current rules text, not whatever shorthand circulates in early discussion. In practice it is a fifth-color patch for a spell-based deck — enough to add a removal suite or draw engine one color over, without unlocking the whole pie.

The Unluckiest Planeswalker

Breaks: color identity restriction on Auras.

The Unluckiest Planeswalker applies the any-identity exception to Auras. Enchantments are the most color-locked permanent type in the game's history, and Auras cluster hard in white, blue and green. The MBC pool makes that lock bite: pull a run of strong off-identity Auras and most commanders cannot touch them. Under this Rulebreaker, the Aura slot goes identity-free while everything else follows normal rules.

Valko Indorian

Breaks: color identity restriction on Phyrexian cards.

Valko Indorian extends the exception to Phyrexian cards. Phyrexia has touched nearly every color across Magic's history, making "Phyrexian cards" one of the broadest categories any of these seven names — and one of the most identity-warping to build around. Within MBC Limited the category depends on what the 2,000-plus card reprint pool deals you; in constructed Commander from November 13, 2026, it becomes a full-scale tribal build with a Phyrexian commander setting the base identity.

The Common Thread

Line the seven up and the design pattern is clear. Five — Seluma, The Everforger, Maular, The Unluckiest Planeswalker, Valko Indorian — open one category to any identity. Tolabow grants a single extra color to one spell type. Whtz ignores identity entirely and breaks deck size instead. All seven are construction-only, commander-only, pre-game-only, and none touches singleton or any other standing rule. Whether that restraint keeps them fair is exactly the argument Card Kingdom opened with "Mystery Booster's new Rulebreaker Commanders break the rules—but are they fair?" — tracked on the community reactions page.

For where these cards physically come from in a pack, see What's Inside Mystery Booster Commander Edition; for when they become Commander-legal, the legality timeline.

FAQ

Does Rulebreaker change any rules during the game?

No. Rulebreaker modifies deck construction only, applies only while the card is your commander, and takes effect only before the game begins. Once play starts, it functions as a normal commander.

Can a Rulebreaker commander get around the 100-card singleton rule?

No. Rulebreaker relaxes only the specific construction rule named on the card; format-level requirements remain fully in force.

Which Rulebreaker is the strongest?

No official ranking exists, and this wiki does not invent one. Systemically: the any-identity Rulebreakers scale with category breadth (Phyrexian cards is wider than angels), Tolabow's single extra color is the most controlled exception, and Whtz's no-deck-cap matters least in MBC Limited and most in home play.

Where do the Rulebreakers appear in packs?

They are part of the 60 new cards in the new-commander slot, nonfoil 95.25% of the time and foil 4.75%. The full slot breakdown is in the What's Inside article.