Built to Count Rocks & Dorks — Not Just Lands
Explore mana probabilities for supported cards and compare mulligan strategies.
Dorks = mana creatures. Rocks = mana artifacts. We count both.
Standard · Pioneer · Modern · Pauper · Commander · Limited — all supportedIllustrative color access score: average turn-two access to required colors. This is not the percentage of spells cast on curve or a keep recommendation.
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40-card pools, 60-card lists, 100-card singletons — one engine, same rigor.
The math tells you what to play.The canon tells you why.
Competitive MTG, curated.
From Karsten's manabase math to Saito's tournament mindset — 65 curated references organized by skill level. Dead links restored via archive.org.
65 references · 5 curated tracks · Karsten · PVDDR · Saito · Chapin · BuddeRigorous Mathematics
Not guesswork. Real math behind every number — so you can trust the advice.
Castability Models
Per spell
Default estimates and explicit exact-model limits
Proven Land Targets
90%
How many color sources you need to cast your spells on curve
Smart Mulligan Advice
Keep / Mull
10,000 hands simulated to find your optimal keep/mull thresholds
The Competitive Reading Library
Every essential article a Magic player should read, in one place. From Karsten's manabase math to Saito's tournament mindset — five curated tracks across every format, with available archives and unavailable sources clearly labeled.
Your First FNM
Starting outReid Duke · Karsten · Chapin · Kuisma · Saito — the foundations that win your first round.
Preparing for an RCQ
Leveling upPVDDR's 6 Heuristics · Manfield's prep routine · ladder strategy essentials — the curriculum from FNM regular to RCQ competitor.
Pro Tour Preparation
MasteringSaito's 6-part mindset series · Dagen · Moudou game theory — the international canon rescued from link rot.
Commander Pod
Piloting 100 cardsKarsten adapted for singleton · Bracket System · Command Zone · Game Knights · EDHREC — the EDH canon 60-card sites ignore.
Limited (Draft & Sealed)
Cracking packsLimited Resources · 17Lands · LSV — the signals, the curves, and the data-driven coverage that changed how Limited is played.
What You Get
Castability
Model-based cast probability. The default estimate includes mana rocks and dorks; exact modes cover only their stated supported model.
Analysis Dashboard
Visual breakdown of your spells by category, curve insights, and performance diagnostics at a glance.
Mulligan Simulator
10,000 simulated hands help compare whether to keep or mulligan.
Export Blueprint
NEWDownload your analysis as PNG, PDF, JSON or CSV. Share on Discord or archive.
How It Works
1
Paste Your Deck
MTGO, MTGA, Moxfield & more
2
Get Probabilities
Mana estimates for supported spells and turns
3
Know Your Mulligans
Optimal thresholds for your archetype
New to manabase theory? Learn the math behind optimal deckbuilding
Local calculations
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Free & Open Source
MIT License10,000
Samples per kept-hand size5
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