A Magic cube is one of the best ways to create a custom draft experience. Instead of opening booster packs, players draft from a curated pool of cards chosen by the cube owner. This lets you design the exact kind of Magic environment your group enjoys.
The challenge is that cube building can get expensive. A cube may contain hundreds of cards, and if you want iconic staples, powerful lands, old cards, or high-value build-arounds, the cost can climb quickly.
That is why many players build MTG proxy cubes. A proxy cube lets you focus on gameplay, archetypes, and replayability without being limited by card prices.
If you are planning a proxy cube, BL Proxies has helpful MTG proxy content for cube builders and casual players.
Decide What Kind of Cube You Want
Before choosing cards, decide what kind of draft experience you want.
A cube can be fast and aggressive, slow and grindy, high-powered, low-powered, tribal, multicolor, artifact-heavy, graveyard-focused, Commander-inspired, or built around a favorite era of Magic.
The cube’s identity should guide every card choice.
If you want wild, powerful games, your cube may include fast mana and iconic spells. If you want a more balanced casual draft, you may choose lower-power cards and avoid explosive starts.
The best cube is not always the strongest cube. It is the cube your group actually wants to draft.
Choose a Cube Size
Cube size affects consistency and variety.
A 360-card cube is a common starting point because it supports an eight-player draft where every card can be used. This size is easier to balance and gives players a more consistent experience.
A 450-card cube adds more variety while still staying manageable.
A 540-card cube creates even more replayability, but it can be harder to tune because not every card appears in every draft.
For a first proxy cube, 360 cards is usually a strong choice.
BL Proxies also has a dedicated MTG proxy cube guide that can help you think through the process.
Build Around Draft Archetypes
A good cube is not just a stack of powerful cards. It should support archetypes that players can draft intentionally.
Common cube archetypes include:
White-red aggro
Blue-white control
Black-red sacrifice
Green-white tokens
Blue-red spells
Blue-black reanimator
Green ramp
Artifact synergy
Five-color good stuff
Graveyard value
Each archetype needs enough support to work. If you include reanimator, you need discard outlets, reanimation spells, and creatures worth bringing back. If you include tokens, you need token makers, payoffs, and ways to close the game.
Draft archetypes give your cube structure.
Balance Colors Carefully
Most cubes start by giving each color a similar number of cards. Artifacts, multicolor cards, and lands usually have their own sections.
Balance matters because players should feel like every color is worth drafting. If one color has too many strong cards, it may dominate. If another color lacks good threats or removal, players may avoid it.
A balanced cube gives players more real choices during the draft.
Give Aggro Decks Enough Support
One common cube mistake is making control, ramp, and midrange too strong while leaving aggro decks weak.
Aggro decks need cheap creatures, efficient removal, combat tricks, burn spells, and enough pressure to punish slow starts.
If aggro is not supported, drafts may become slower and less dynamic.
Even if your group enjoys big spells, the cube usually plays better when aggressive decks are a real option.
Include Strong Mana Fixing
Mana fixing is one of the most important parts of cube design. Good lands let players draft multicolor decks and cast their spells consistently.
A proxy cube makes it easier to include strong land cycles, utility lands, and flexible fixing.
The amount of fixing depends on the cube. A two-color focused cube may need moderate fixing. A multicolor cube needs more. A high-powered cube often needs lands that enter untapped more often.
Good mana makes games smoother and lets players explore more creative decks.
Use Proxies to Test Expensive Cards
Cube is one of the best places to use proxies because it often involves many expensive cards. Instead of buying every card first, you can test the environment with proxies.
This helps you learn which cards are fun, which cards are too strong, and which cards do not fit the draft experience.
If a card creates bad games, you can cut it. If a card becomes a favorite, you can keep it.
Proxy cubes are easy to adjust, which makes them perfect for testing.
Think About Physical Presentation
A cube is a reusable game product, so presentation matters. Sleeves, storage boxes, dividers, tokens, and draft organization all affect the experience.
If your cube includes custom tokens, labels, or printed inserts, the draft night can feel more polished.
For players interested in cube printing and presentation ideas, PrintACube.com is a useful resource.
A well-organized cube is easier to draft and more enjoyable to bring out again.
Keep Testing and Updating
No cube is perfect on the first try. After each draft, ask players what worked and what did not.
Were some colors ignored?
Did one archetype dominate?
Were games too fast or too slow?
Were there enough answers?
Were players able to cast their spells?
Were any cards confusing or unfun?
Use this feedback to make small changes.
Cube design is an ongoing project. That is part of what makes it fun.
Build the Cube Your Group Wants to Draft
An MTG proxy cube lets you create a custom draft environment without being limited by card cost. You can build around favorite archetypes, old cards, iconic staples, unusual themes, or a specific power level.
Start with a clear vision, choose a manageable cube size, support real draft archetypes, balance the colors, add good mana fixing, and test often.
For more MTG proxy cube and casual Magic content, visit BL Proxies.