Power Level, Explained
"Power level" is the old 1-10 community scale; WotC Brackets are the official 1-5 system. Here's how they map - and what 50,328 tracked games actually say about whether they predict winning.
Each with a full decklist and 5+ tracked games.
Win rate vs an equally-random deck in the same pods, with 95% CIs.
Casual Commander games logged on Playgroup. No deckbuilder has this.
Do decks with more Game Changers win more?
Game Changer count is one of the things that sets a deck's bracket. Across 4,002 tracked decks (full decklist, 5+ games) and 50,328 games, here is win rate by Game Changer count - normalized for pod size so bigger and smaller pods compare fairly. +12% means decks in that group win 12% more often than an average deck in the same pods. (These are correlations across the decks we track, not all of Commander - see the method note below.)
The takeaway: decks running Game Changers win meaningfully more than average, but with diminishing returns - decks with none are roughly average, and decks with 4+ don't clearly beat decks with 1-3. Adding Game Changers moves a deck up a bracket faster than it moves its win rate.
Reading this honestly
Sample. 4,002 decks with a full decklist and 5+ logged games, out of roughly 625k decks. The decklist is the bottleneck, and tracked decks skew toward engaged players - read this as the decks we track, not all of Commander.
Today's list, all history. We apply the current Game Changers list across every tracked game. The official list changes over time and most of these games predate the bracket system, so this measures these specific cards' association with winning, not the bracket system over time.
Count, not bracket. Game Changer count is only one of several bracket criteria - tutors, extra turns, mass land denial, and two-card combos count too - so it approximates a bracket rather than equalling one.
Correlation. Win rate is normalized by pod size and shown with 95% confidence intervals; the 4+ group is a smaller sample. These are associations, not proof that the cards cause wins.
Power level vs Brackets vs Game Changers
Rough map: power 1-4 ≈ Bracket 1-2, power 5-7 ≈ Bracket 3, power 8-9 ≈ Bracket 4, power 10 ≈ Bracket 5 (cEDH). See the Game Changers list and the official Commander Brackets announcement . The list itself lives on Scryfall (is:gamechanger) .
Power Level FAQ
Is EDH power level accurate?
What is a Commander deck's power level?
How does the 1-10 power level map to the new Brackets?
Do decks with more Game Changers win more?
What power level or bracket is my deck?
A static calculator only sees how your deck is built. To learn how it actually plays - its real win rate and matchups - track your games on Playgroup.