Important: First, you must draft commander packages: https://cubecobra.com/cube/list/ke03
STEP 1: THE COMMANDERS
Each person is dealt 3 Commanders from the starting 31, picking one and passing the rest to the left until each person has 3 Commanders. These Commanders each come with an additional 24-card package, which consists of:
Before playing any matches, you will select one Commander, and its corresponding package will be added to your card pool. You may not use any other cards in the packages of the other 2 Commanders you picked. Decks in this format will be exactly 60 cards. With 25 cards provided to you at the start, and 12 further land slots, your typical deck will need around 23 cards from the draft portion.
Here is a link to the package images for the Commander portion of the draft. These can be loaded directly into Tabletop Simulator or others: https://imgur.com/a/OJZPQvD
STEP 2: THE DRAFT
Deal each player three 20-card packs from the main cube list (this one). Choosing one card each time, take a card and pass the rest to the player on your left until all cards have been drafted. Repeat this process with the second and third 20-card packs, passing to the right on the second.
STEP 3: THE DECKBUILDING
Once all three packs have been drafted, each player must decide which of the three Commanders dealt to them they will choose to helm their deck. Each players' card pool now consists of a Commander, 24 package cards, and 60 drafted cards. Each player will build a 59-card deck from their card pool, with one Commander at the helm. Your Commander must be one of the 3 you drafted at the beginning, even if there are other legendary creatures in your card pool.
STEP 4: THE MATCHES
This cube is intended for the 1v1 Brawl format. Each player must have an exactly 59-card deck with a Commander in their command zone. All cards in your deck must be in your Commanders' color identity. Players start with 25 life each.
Matches will be played in a best-of-three format, with players being able to sideboard other cards from their card pool during games 2 and 3. Alternatively, matches can be played a best-of-one format with no sideboards.