Commander Glossary
Five brackets, numbered 1 through 5 — Exhibition, Core, Upgraded, Optimized, and cEDH — replacing 'what power level are we playing at?' with a shared vocabulary instead of a vibe check. Here's what actually separates each one.
Before brackets, "power level" was Commander's informal shorthand for deck strength — usually a number on some open-ended 1-10 scale that meant something different at every table. One player's 7 was another player's 5, because there was never a shared definition, just a vibe. Wizards of the Coast's official bracket system exists to fix that: five defined tiers meant to describe roughly the same thing everywhere, so a playgroup can agree on what kind of game they're sitting down to before anyone's board gets run over.
Exhibition
Casual, thematic, low-optimization decks built around a bit or a flavor idea more than winning efficiently — a deck built entirely around one creature type, or a joke commander, played for the fun of the build rather than raw power.
Core
The 'default' Commander experience Wizards designs precons around — a coherent game plan, reasonable removal and ramp, but without fast mana, extra-turn chains, or a tuned combo package. Most preconstructed decks land here out of the box.
Upgraded
A precon or homebrew deck that's had real upgrades — better mana base, tighter card choices, some efficient interaction — without going all the way to a dedicated combo or stax plan. The most common bracket for an actively-played, several-months-old deck.
Optimized
High-power decks built to win consistently and efficiently — fast mana, tutors, a real combo or lock package, tight curves. Not full cEDH, but built by someone optimizing hard within a still-recognizably-Commander shell.
cEDH
Competitive EDH — decks built for tournament-level play, where the game plan is winning as fast and as consistently as possible against other similarly-built decks. Every card choice is justified by efficiency; there's no room for a card included 'because it's cool.'
The honest answer is that bracket placement is still somewhat judgment-based — it's a framework, not a formula with one right answer. A few signals that push a deck up the scale: how much fast mana it runs, whether it carries tutors for its key pieces, how dense and how fast its combo package is (if it has one), and how consistently it executes its plan versus how much it leans on getting lucky. A deck with none of that going on is almost always Core or Upgraded; a deck built entirely around assembling one specific two-card combo as fast as possible is Optimized or cEDH.
If you'd rather not eyeball it, a decklist-reading tool can estimate the bracket directly — TurnZero's Rate My Deck reads a decklist and returns a bracket estimate along with specific suggestions for where it could tighten up or scale back.
Worth keeping in mind: a bracket describes what a decklist looks like on paper, before a single game is played. It doesn't account for piloting skill, table matchups, or how a specific playgroup's decks interact. A deck that scores as a 3 can still consistently beat a table of 4s, or lose to a table of 2s, depending on who's actually playing it and against what. That's a separate, results-based question — the kind of thing a win/loss-derived deck rating answers instead.
Wizards of the Coast's official system for describing deck power, numbered 1 through 5: Exhibition, Core, Upgraded, Optimized, and cEDH. It exists to give playgroups a shared vocabulary for power level that means roughly the same thing at every table, instead of everyone using their own informal 1-10 scale.
Look at what the deck is actually doing: a deck with no fast mana, no tutors, and a loose game plan is probably Core or Upgraded. One built around a tight combo package with tutors and fast mana is Optimized or cEDH. Tools like TurnZero's Rate My Deck can also read a decklist directly and return a bracket estimate.
They're related but not identical. 'Power level' has historically been an informal, subjective 1-10 scale that varies by playgroup. Brackets are Wizards' official attempt to standardize that conversation into five defined tiers with a shared meaning, rather than everyone's own gut-check number.
Yes — a bracket rates a decklist's contents, not how it actually performs at a specific table. A deck can look like a 3 on paper and consistently beat a table of 4s because of matchup or piloting, or the reverse. That's exactly why a results-based rating (like a win/loss-derived power ranking) is a useful second number alongside a bracket estimate, not a replacement for it.
TurnZero's Rate My Deck estimates the bracket from your list; its power ranking tracks the real results.
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