Commander Brackets: what they are and how to calculate yours

Commander brackets are five power levels the table agrees on before the first hand, so nobody sits down with a store-bought precon across from a deck built to win on turn four. Wizards defined them officially, with concrete criteria instead of just “this is for fun or this is for real.”

If you came from the general Commander guide, you already know the short version of the five levels. Here is the full breakdown: what actually separates one bracket from another and, more importantly, how to calculate which one your own deck falls into.

Why brackets exist

The problem is not new: Commander has no format-wide banned list the way Standard does, so two “legal” decks can be worlds apart in power. One runs a precon commander and ramps slowly; the other has half a dozen pieces that win the game on their own before turn six. Sitting those two down together without warning is the number-one cause of frustrating games.

Brackets are Wizards’ answer: a shared language, with objective criteria, to say “my deck is this level” before shuffling up.

The five brackets

1. Exhibition. Decks built around a theme or a joke, not to win: commander and synergy chosen for how fun they are to watch at the table, even if that means plays with no competitive point at all. No Game Changers.

2. Core. The level of a freshly bought, untouched precon. Normal synergy, a reasonable curve, the occasional strong card, but no Game Changers, no two-card combos that win the game on their own, no chained extra turns, and no mass land denial.

3. Upgraded. A precon with real upgrades, or a deck built from scratch with that same level of ambition: up to three cards from the Game Changers list, some tuning to the curve and mana base, but no combos that win before the mid-game and no chained extra turns.

4. Optimized. The strongest deck you can build without bracket 3’s restrictions: unlimited Game Changers, two-card combos, chained extra turns and mass land denial are all fair game. It is high power, but still meant to be a table game, not a tournament metagame.

5. cEDH. The full competitive end: decks tuned against the rest of the cEDH metagame, with the sole goal of winning as fast and as consistently as possible. No restrictions of any kind.

The four things that actually separate one bracket from another

It is not a vibe or “you can tell while playing.” Wizards names four concrete axes:

• How many Game Changers you run. Zero for bracket 2, up to three for bracket 3, unlimited from bracket 4 up.
• Two-card combos. If your deck can assemble a combo of just two pieces that wins or locks the game on its own, that is bracket 4 or cEDH, regardless of everything else. If you are not sure whether what you run counts as one, the two-card combos guide walks through the eight classics and separates the ones that win on their own from the ones that only build the engine.
• Chaining extra turns. One extra-turn card on its own does not move the needle. Several built to chain into each other do, and push the deck to bracket 4 or cEDH.
• Mass land denial. Armageddon-style effects that destroy everyone’s lands at once are off the table in brackets 2 and 3; they are only expected in 4 and cEDH, and even there you give a heads-up before casting one.

Tutors do not have their own cap: they get judged alongside the rest, because a deck packing a lot of tutors usually goes hand in hand with the other three axes.

How to calculate your bracket, step by step

1. Check your decklist against the Game Changers list. On Scryfall, the search is:gamechanger gives you the full, always-current list. Count how many you run.
2. Look for two-card combos. Is there a pair in your deck that, played together, wins the game or fully locks out your opponents? If so, and you can assemble it early, you are already outside bracket 3.
3. Check your extra turns. One card on its own does not count. If you run two or three built to chain (Time Warp plus a cheap way to recur it, say), that matters.
4. Check for mass land denial. Cards that wipe out the whole table’s mana at once, not just one opponent’s.
5. Cross the four data points against the table:
   • Zero Game Changers and none of the other three axes → bracket 2.
   • Up to three Game Changers, no early combos or chained extra turns → bracket 3.
   • No cap on any axis, but built for the home table → bracket 4.
   • Built and tuned against the competitive metagame → cEDH.
6. When in doubt, say so before you play. If your deck sits between two brackets, the table decides together which level to play that particular game at; you do not need to nail it to the letter.

Bracket calculator: paste your decklist

Rather have a machine do the counting? The Commander bracket calculator runs the four steps above on your list straight from Moxfield: Game Changers, two-card combos, tutors, extra turns and mass land denial. It also checks your color identity, mana curve and land count.

Open the bracket calculator →

The Game Changers list

This is an official list of cards — currently around 53 — that Wizards considers strong enough to break the normal pace of a Commander game: highly efficient tutors (Demonic Tutor), fast mana that skips you several turns ahead (Mana Vault), symmetry-breakers that only benefit whoever cast them (Cyclonic Rift, Smothering Tithe), or pieces that win whole tables on their own (Gaea’s Cradle). It is not set in stone: Wizards reviews it alongside the brackets, so it is worth double-checking on Scryfall (is:gamechanger) before trusting a list you saw a few months ago.

Running one Game Changer does not automatically make a deck a problem; it is the total count, weighed against the other three axes, that actually moves the bracket.

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For the rest of Commander’s rules — the 100 cards, colour identity, the commander tax — the full guide covers them all. And if it is a single card’s keyword you are missing, that is in the keyword glossary.

Agreeing on a bracket is half of a good game; the other half is not losing track of 40 life, commander damage from three opponents and poison counters at the same time. MagicNexus handles all three for you and logs the game to your history when it ends.