Commander Deckbuilding That Starts
With Your Cards
Spellweave helps you turn your collection and a commander into a cohesive, synergy-driven deck that feels balanced and ready to play.
From the Founder
Why I Built Spellweave
After a long time away from Magic, I got back into the game and wanted to bring my kids along. They were finally old enough to understand it and I saw it as a great way to bond. But putting together solid Commander decks turned out to be harder than expected. Commander didn't exist back when I used to play, and building a 100-card singleton deck is a different challenge entirely.
The tools I found were built for people who already know exactly what they want. They recommend expensive staples, assume you have access to every card ever printed, and leave you to figure out the rest.
So I decided to build something that could help players start with the cards they have and end up with decks that feel cohesive, balanced, and ready to play.
What We're Building For
Deckbuilding should be fun, not overwhelming. Spellweave is built to help players create decks that feel intentional and playable, whether they're learning the basics or looking for new angles in decks they already know well.
Understand your deck
Learn what your deck is trying to do, not just what cards are in it.
Build with confidence
Every card has a reason. Every role is covered. No guesswork.
Keep improving
AI analysis shows you how to pilot and mulligan. Recommended Cards helps you discover what to add next.
Not Just Suggestions
Most deckbuilding tools show you popular cards or let you sort through lists. Spellweave builds you a complete 100-card deck with balanced fundamentals, strong synergy, and power-level awareness, all grounded in the cards you actually have.
Built by 3Dec Studios
Spellweave is shaped directly by player feedback. Features evolve based on real decks, real collections, and real play experiences. When you reach out with suggestions, you're talking directly to the people building it.
Learn the Fundamentals
Guides covering deck building, synergy, optimization, and brackets.
Commander Deck Building
The foundations of building a 100-card singleton deck. Card roles, the rule of eight, and how to balance your strategy.
Read guide →Card Synergy Explained
Enablers, payoffs, and engines. How to identify cards that work together and build a deck with a coherent game plan.
Read guide →Deck Optimization
How to upgrade a precon or tune an existing deck. Identifying weak slots, improving consistency, and upgrade paths.
Read guide →Commander Brackets
The official power-level framework for Commander. How brackets work, game changer cards, and choosing the right level for your group.
Read guide →Ready to Build?
Import your collection and see what Spellweave can do with it. Free to start, no credit card required.