I am also submitting feedback that MMR appears to be weighted too heavily compared to actual deck power in Brawl matchmaking.

The current system seems to punish players for winning games with casual or fun decks. A deck may start out receiving appropriate matchups based on its actual power level, but after winning some games, the matchmaking appears to push that deck into queues against highly optimized lists, tutor-heavy decks, ramp shells, control shells, stax pieces, and combo engines that are far beyond the deck’s intended power level.

This creates a frustrating experience because a casual deck that is capable of winning some games is not the same thing as an optimized high-power deck. Winning with a lower-powered or more casual deck should not cause the player to be repeatedly matched against decks with much higher consistency, stronger card quality, more tutors, more ramp, or more oppressive game plans.

Brawl matchmaking should prioritize deck construction and actual deck power more heavily than player MMR. MMR may be useful as one factor, but it should not override deck-strength weighting to the point that a casual deck is effectively punished for performing well.

Please review whether Brawl matchmaking is placing too much emphasis on MMR relative to deck power. The system should distinguish between a truly optimized deck and a casual deck that happens to win games through normal gameplay.