In 2025, Wizards of the Coast introduced the Commander Bracket System — a shared language for power level conversations at the table. Before brackets, every Commander game started with the awkward "what level are you playing?" negotiation, and somehow everyone always said 7. The number was relative, undefined, and almost meaningless between strangers.
Now there's an official framework. The bracket system gives players a concrete, verifiable vocabulary for pre-game alignment. EDHcheck uses WotC's exact criteria to assign every deck a bracket from B1 to B5, so your declaration before a game is backed by objective card-level analysis.
The Game Changer List
Before diving into brackets, you need to understand Game Changers — the roughly 24 cards WotC has officially designated as format-warping enough to require acknowledgment before any game. Running Game Changers doesn't make your deck illegal at any bracket. It means you must declare them as part of your pre-game overview, and their presence is one of the primary factors that determines your bracket assignment.
The official Game Changer list: Jeweled Lotus, Mana Crypt, Demonic Tutor, Vampiric Tutor, Tainted Pact, Dockside Extortionist, Rhystic Study, Mystic Remora, Necropotence, Ad Nauseam, Smothering Tithe, Bolas's Citadel, Underworld Breach, Yawgmoth's Will, Thassa's Oracle, Flash, Protean Hulk, Opposition Agent, Hullbreacher, Mnemonic Betrayal, Fierce Guardianship, Deflecting Swat, Deadly Rollick, and Flawless Maneuver.
Note what's not on this list despite being powerful: Winter Orb, Esper Sentinel, Sylvan Library, Expropriate, and Narset, Parter of Veils. These contribute to your power score calculation but don't count toward Game Changer thresholds for bracket assignment.
Bracket 1 — Exhibition: The Experience-First Bracket
B1 decks are deliberately low-power. Win conditions are thematic, slow, and highly disruptible. The bracket has no Game Changers, no fast mana beyond Sol Ring, no extra turns, and no infinite combos of any kind.
The spirit of Bracket 1 is a format where the game itself — the back-and-forth of turns, the development of boards, the social story of the game — is the priority rather than the win. B1 players typically want to demonstrate a cool synergy, play a thematic deck centered on their favorite characters or mechanics, or introduce new players to Commander without overwhelming them.
What belongs at Bracket 1: Mono-color precon-adjacent decks, tribal builds optimized for flavor rather than efficiency, commander damage strategies that telegraph their game plan three turns in advance, and thematic builds where the commander choice and card selection are constrained by lore rather than power optimization.
Pre-game declaration at B1: "I'm playing a Bracket 1 deck, no fast mana beyond Sol Ring, no combos, here to have fun with the theme." This is the clearest possible declaration and rarely generates any friction.
Bracket 2 — Core: The Upgraded Precon Tier
B2 is the most common bracket for casual Commander pods. Decks are mechanically coherent, synergy-focused, and built around a clear game plan — but win conditions are still incremental and games are decided by board development rather than explosive turns.
Sol Ring, Arcane Signet, and basic tutors like Kodama's Reach, Cultivate, and Demonic Tutor's non-Tutor equivalents are all fine at B2. One extra-turn spell is acceptable. Value-oriented builds that win through combat damage, attrition, or slow combo development fit here.
Key restrictions at B2: No Game Changers, no early infinite combos. A deck can be highly synergistic and thematically powerful while remaining at B2 as long as it respects these limits.
What Bracket 2 games feel like: Games at B2 run 45-75 minutes. All four players typically develop boards, make interesting decisions, and have meaningful impact on the outcome before someone wins. The most fun Commander experiences for most casual players happen here.
Bracket 3 — Upgraded: The Spiky Casual Zone
B3 is where Commander gets genuinely competitive while still maintaining social Commander norms. Up to three Game Changers are fine. Late-game two-card combos are acceptable as long as they don't close games before turn five or six consistently. High card quality is expected — players at B3 are optimizing their lists, not just playing what they own.
Hard restrictions at B3: No mass land denial (Armageddon, Jokulhaups, Ravages of War). No chaining extra turns (more than one extra-turn spell in the deck). Early-game combos that consistently win on turns three or four push a deck to B4 regardless of how the rest of the list looks.
What B3 games feel like: Games run 35-55 minutes. Interaction matters more than at B2 — threats get answered, board wipes are sequenced strategically, and players who stumble on mana or draw in the early turns often cannot catch up. Declaring your Game Changers before the game is mandatory and expected.
Bracket 3 is the widest bracket. The low end of B3 is barely faster than B2; the high end approaches B4 speed. Two B3 decks from different ends of the bracket can feel like a significant power mismatch even though both are technically correct in their self-assessment. This is where precise Game Changer declarations help the most.
Bracket 4 — Optimised: Pre-cEDH Power
B4 is for highly tuned builds: multiple Game Changers (more than three), strong tutor suites, fast mana beyond Sol Ring, and consistent sub-turn-five combo windows. If you're running Demonic Tutor, Vampiric Tutor, Flash, Protean Hulk, and Thassa's Oracle in the same deck, you are at B4.
What B4 games feel like: Games run 20-40 minutes. Counterspell representation is high. Win conditions are predominantly two-card combos assembled through multiple tutor lines. Interaction is efficient and targeted — broad board wipes are less common than single-target exile effects. Players who can't impact the game by turn three or four often cannot recover.
What your deck needs at B4: Fast mana that goes beyond Sol Ring and Arcane Signet. Stack interaction at one to two mana. A win condition that executes in two cards with redundant search lines. Protection for your own combo turn — Silence, Grand Abolisher, Veil of Summer, or free counterspells.
Bracket 5 — cEDH: Competitive Commander
B5 requires table agreement and represents an entirely different social contract. These decks are built to solve the game as early as turn two or three. Five or more Game Changers, three or more free interaction spells (Fierce Guardianship, Deflecting Swat, Force of Will), and multiple fast-win combo lines are the expectation rather than the exception.
The cEDH metagame is its own ecosystem with a well-developed meta, specific tier lists updated by dedicated community members, and events that run entirely under B5 rules. Playing a B4 deck in a cEDH pod is a significant mismatch and typically produces a losing experience.
If you are approaching cEDH, the community maintains specific resources beyond what bracket assignment covers. The bracket system exists to help B1-B4 pods find alignment; B5 has its own vocabulary.
How EDHcheck Assigns Brackets
EDHcheck evaluates these factors in sequence to determine bracket:
| Factor | B3 trigger | B4 trigger | B5 trigger |
|---|---|---|---|
| Game Changers | ≥1 | >3 | ≥5 |
| Early combos (turn 3-4 win) | — | yes | yes |
| Free interaction spells | ≥1 | ≥2 | ≥3 |
| Extra turns | ≤1 allowed | — | — |
| Mass land denial | any | — | — |
The bracket is the ceiling, not the average. One Thassa's Oracle plus Demonic Consultation package makes a deck B4 regardless of how casual the rest of the 99 cards are. A single Game Changer moves a deck from B2 to at least B3. The bracket system is designed to surface the most impactful cards in any list, not to average across all 100.
Using the Bracket in Pre-Game Conversations
The bracket number is the starting point, not the complete picture. When declaring before a game, your bracket combined with your win condition and Game Changer count gives a complete picture:
"I'm playing Bracket 3. My Game Changers are Rhystic Study and Necropotence. Primary win is infinite combat damage through Kiki-Jiki, usually turns 7-9. No extra turns, no land destruction."
That declaration takes 20 seconds and gives every player at the table exactly what they need to assess threats and sequence their decisions correctly.
Want to see where your own list lands? Run it through the Commander bracket calculator, or build a deck from scratch in the EDHcheck deck builder and watch its bracket update in real time as you add cards. For the component scores behind the bracket number, read how to read your EDHcheck power score correctly. For putting the bracket to use before a game, see Rule Zero conversations that actually work.