Guide
How it works
The deckbuilder turns your card collection into format-legal, ready-to-play decks in four steps. No guessing. No buying. Everything you see is something you already own.
Upload your collection
Drop in a CSV export from ManaBox — the same file the app produces from "Export collection." Quantities, set codes, conditions, languages, foils, and purchase prices are all read directly. Other tracker formats aren't supported yet; if you'd like a specific one added, say so on Patreon.
Set your preferences
Pick a format (pauper, commander, legacy, brawl, jumpstart, paupercommander, tinyLeaders). Then optionally narrow the build: preferred play style, colors, archetypes, a locked commander or required card, price range, condition filter. Skip the advanced section if you just want the strongest decks the collection supports.
Watch the build
A beam-search builder runs candidate decks in parallel, scoring each one with a neural deck ranker trained on real decks from that format. You see live progress: which archetypes are surviving each generation, and how many generations have been considered so far. Builds usually finish within a few minutes; collection size and the format's constraints decide how long.
Pick a deck
Each result lists the full decklist, a quality grade, the total price (summed from your own purchase prices), and the archetype it landed on. Copy the decklist to your clipboard or download it as a plain-text file — the standard "quantity card-name" format imports cleanly into Moxfield, Archidekt, and most other deck managers. Or just sleeve it up.