The Magic: The Gathering Throne of Eldraine Brawl Decks are 60-card ready-to-play decks, all Standard-legal, and designed specifically for the Brawl format. There are four Magic: The Gathering Throne of Eldraine Brawl Deck decks available, and each has seven Standard-legal cards not available in Throne of Eldraine booster packs.
Here's how the Brawl format works:
All cards must be Standard-legal
No more than 1 of a given card (except basic land)
1 "commander" — a legendary creature or planeswalker that begins in the command zone and returns to it any time it leaves the battlefield
Any mana symbol that appears on a given card must also appear on your commander
Players start with 30 life
Best played in groups of 3–5 players