How to Build Your First MTG Cube: A Beginner's Complete Guide

If you've ever wanted to create the ultimate custom draft experience for your Magic: The Gathering playgroup, building a Magic Cube is one of the most rewarding projects you can take on. An MTG Cube is a curated collection of cards designed to be drafted over and over again, offering endless replayability and a deeply personal expression of what you love about the game. Whether you prefer blazing-fast aggro strategies, intricate combo lines, or grindy control mirrors, your cube can reflect exactly the kind of Magic you want to play. What Exactly Is an MTG Cube? At its core, a cube is a fixed set of cards — typically 360 to 540 — that players use to draft decks in a sealed environment. Unlike traditional booster drafts, where you buy packs from a specific set, a cube lets you hand-pick every single card. This means you control the power level, the archetypes, the color balance, and even the flavor of the experience. Many cube designers spend months refining their lists, swapping cards in and out to keep the format fresh. If you're just getting started and want help designing or printing your first list, PrintACube offers excellent tools and resources to streamline the entire process. Choosing a Size and Power Level The first decision you'll face is how large your cube should be. A 360-card cube supports exactly eight drafters with no leftover cards, creating tight, consistent archetypes. A 540-card cube introduces more variance, meaning drafters won't see every card each session. For beginners, 360 is the sweet spot — it's easier to balance and test. Power level is your next big choice. Some designers model their cube after Vintage, including the most powerful cards ever printed. Others prefer a "peasant" approach using only commons and uncommons. Many land somewhere in between, aiming for a Modern-level power environment that feels competitive without being dominated by a handful of broken cards. Designing Archetypes and Color Balance A well-designed MTG Cube supports multiple archetypes across all color pairs. You'll want to ensure that each two-color combination has a clear identity — for example, Red-White aggro, Blue-Black control, or Green-White tokens. This doesn't mean every drafter must play a two-color deck, but the signposts should be there. Aim for roughly equal representation across the five colors, with a solid base of multicolor, colorless, and land cards to support mana bases. One common mistake new cube builders make is overloading on splashy rares and mythics. The backbone of any good cube is its commons and uncommons — the role-players that glue strategies together. Bringing Your Cube to Life Once you've settled on a list, the next step is actually assembling your cube. You can use cards from your existing collection, purchase singles, or — increasingly popular — Print a Cube using high-quality proxy services. Proxy printing has become a game-changer for cube designers who want to include expensive reserved-list cards or simply test new additions before committing to purchases. Whichever route you choose, sleeve your cards in uniform sleeves and store them in a sturdy box. Your cube is a living project — you'll be updating it for years to come, and a good storage solution keeps everything organized and draft-ready at a moment's notice. Building your first Magic Cube is a journey worth taking, and the community is full of passionate designers eager to help newcomers find their way.