Magic: The Gathering
Deck builder
Upload your collection. Define your playstyle. Build a new deck in under 5 minutes
If you're just starting out, we're here to help get out a few decks with the cards you already have in your collection. Once you get the hang of the game, you can test and exchange better to fit your playstyle.
How It Works
Three simple steps to your next winning deck
Why ManaBuilder?
The smartest way to turn your card collection into winning decks
Synergy Detection
Our AI scans your entire collection to identify powerful card combinations and hidden interactions. It finds combos across creature types, spell chains, and enchantment synergies that you might miss when building manually.
All Formats Supported
Build decks for every major competitive and casual format including Standard, Modern, and Commander/EDH. Format legality is validated automatically.
Build From What You Own
Upload your collection via CSV export from popular tracking apps. ManaBuilder prioritizes cards you already own, so you can start playing new decks without buying a single new card.
Strategy Breakdowns
Every generated deck includes a detailed strategy guide explaining your win conditions, key card choices, ideal opening hands, and sideboard plans so you understand exactly how to pilot it.
Popular Formats
ManaBuilder generates legal, optimized decks for every major format
Standard
Standard is the most accessible competitive format, using only cards from recent sets. It rotates annually, keeping the metagame fresh and the barrier to entry low. Perfect for newer players who want a balanced, evolving environment.
Read format guideModern
Modern includes cards from 8th Edition onward, offering a deep card pool and diverse archetypes. It rewards mastery and lets you invest in a deck that stays legal indefinitely — ideal for players who want long-term value.
Read format guideCommander / EDH
Commander is the most popular casual format, featuring 100-card singleton decks led by a legendary creature. It's built for multiplayer games and creative self-expression, making it the social heart of Magic: The Gathering.
Read format guideLearn to Build Better Decks
Free guides written for every skill level
How to Build a Magic Deck
A complete walkthrough of deck construction: choosing a strategy, picking your colors, balancing your mana curve, and finalizing your 60-card or 100-card list.
Read guide60-Card Deck Secrets
Learn the Rule of 9, optimal land counts, and sideboard strategies that separate casual builds from tournament-ready 60-card decks.
Read guideMTG Colors Explained
Understand the five colors of Magic — their philosophies, strengths, weaknesses, and how to combine them for powerful multicolor strategies.
Read guideMTG for Beginners
New to Magic: The Gathering? Start here for a friendly introduction to the game's rules, card types, phases, and your first steps toward building a deck.
Read guide