Also known as “Limited Infinity,” Type 4 is our “infinite mana, infinite decisions” format: the table shares a limitless mana pool, games start at 20 life, a 5-card opening hand, one free mulligan, and a 7-card maximum hand size, where the real constraint is what you’re allowed to cast each turn. It plays like the most dramatic parts of Commander—big spells, huge swings, politics—without any initial development.

Proxy Friendly house rules:

1. Players share an infinite mana pool that never empties between turns and phases.

2. Players can use the infinite mana pool to pay the cost in the top right corner of a spell once per turn. Alternate costs, additional costs, and activated abilities are unrestricted.

3. Infinite responding abilities are won by the defending ability.

4. Spells and abilities that can directly win the game are banned.

5. Players start games with 5 cards in hand.

6. One mulligan for a new hand of 5 cards.

7. Seat 1 draws a card to start their 1st turn.

8. The maximum hand size is 7 cards.

Rule exception:

• If mana from an ability, like Cascading Cataracts, filters the infinite mana pool and pays the entire converted mana cost (top right mana value of a card), that spell doesn’t count towards your one spell per turn limit.

You’ve got two primary options:

1. Draft Mode (recommended): designed as a 4-player free-for-all (just like Commander), where each player drafts 3 packs of 15 random cube cards (following normal limited draft structure) and then plays with a minimum 40-card deck and up to a 5-card sideboard. This is the intended experience with various archetypes to discover and explore.

2. Chaos Stack Mode: Shuffle up a random stack and draw off the top for a wilder, faster “see what happens” game.

• 4-player draft (1 pod) Recommendation: Choose your favorite 200 cube cards and curate your own meta for your playgroup. This leaves 20 undrafted cards available for effects that add cards to hand from outside the game.

• 8-player draft (2 pods) Recommendation: Choose your favorite 385 cube cards and curate your own meta for your playgroup. This leaves 25 undrafted cards available for effects that add cards to hand from outside the game.

• 16-player draft (4 pods) Recommendation: Choose your favorite 750 cube cards and curate your own meta for your playgroup. This leaves 30 undrafted cards available for effects that add cards to hand from outside the game.

• New custom card expansions are released every 2 months to evolve the experience.

Event Registration—CLICK HERE

You have two options throughout the course of our Proxy Friendly Circuit:

1. Play in a 16-player capped Cube Qualifier co-hosted with an LGS partner. These events grant byes and free entry into our Circuit Finale, as well as Precon products and high-end MTG card prizes.

2. Play in our 16-player Cube Draft flights held throughout the entire Circuit Finale weekend. These are side events that are first-come, first-served, and launch when all 16 seats fill.

• Cube card lists will vary by event. Newly released custom card expansions will be featured and replace certain Core Set cards. Check our event listings for details.