You, along with everyone else at the table, open one pack each and select—"draft"—one card from that pack. Then you pass the rest of the cards to the player on your left. The packs get passed around the table until all the cards are gone. You repeat this process for the second pack, passing to the right.
All you need is 6 packs for each player, so you could certainly do that to practice in advance of a prerelease, since it's the same format (apart from the fact that you'd be doing it with a set besides MOM). You just open your 6 packs each an make a 40 card deck out of what you open, plus basic lands.
To have a Booster Draft, you need three things: 3 Booster packs per player from the current draft format. 8 total players (It's possible to draft with fewer than 8, but 8 is the number needed for sanctioned Magic drafts) A healthy supply of basic lands.
Each deck should have at least 40 cards and should last an average length for a game (about 20 minutes).
For 2 players, I prefer a tower draft. Shuffle 92 cards into a pile, then take turns flipping over the top 4 cards. Player 1 takes a card, player 2 takes 2 cards, the player 1 takes the last card. Take turns going first.
The Draft format is a true test of skill. Build decks on the spot from a rotating selection of booster packs. Pick a card and pass it on. Harness the chaos, explore emergent strategies within the cards your opponents pass you, and draft a unique and exciting deck.
How to draft: First, players sit around a table in a semi-circle. Each player then opens a booster pack and picks a single card without showing the other players. Each player then passes the remaining cards to the left, and continues drafting from the new cards they get from the player on their right.
When I first heard about it, I was just as curious as you might be now. Simply put, the 75% rule is a guideline for building decks that are strong enough to win but not so overpowering that they ruin the fun for others. It's about striking a balance between competitiveness and enjoyment.
For Three Players For each pack, the first player takes a row or column, then refill it with three new, random cards. The second player then picks a set of three without refilling. The third player picks, which may be only two cards, and the rest of the cards are discarded before laying out a new pack.
To have a Booster Draft, you need three things: 3 Booster packs per player from the current draft format. 8 total players (It's possible to draft with fewer than 8, but 8 is the number needed for sanctioned Magic drafts) A healthy supply of basic lands.