BETA
Commander deck tuner

Tune the 99.

Paste your Commander deck and get swap suggestions backed by thousands of simulated playtests — which cards to add, which to cut, and proof each change makes your deck faster.

See how it works

Free · no account · same deck in, same answer out

Ghen, Arcanum WeaverExample
Ghen, Arcanum Weaver White Black Red
Enchantments · core Graveyard value Bracket 3

How it works

Three steps, all in your browser — free, no account.

01

Detect

Reads every card's rules text to work out your themes, tribes, and the basics — ramp, draw, removal.

34,000cards read, filtered to your colors
02

Suggest

Ranks the full catalog by fit to your plan, inside your colors, bracket, and Game Changer budget.

5brackets, Game-Changer aware
03

Playtest

Paired solo games on both lists, same shuffles — so the difference is the swap and nothing else.

1,000sof games run per swap

What it can — and can't — see

These are solo "goldfish" games. They measure speed and consistency, not win rates — no opponents, so removal, politics, and your table's meta don't show up. One-shot treasures and rituals are counted; repeating treasure engines and cast-loop combos aren't, so those benefits look smaller than they play. A card can be right for reasons no simulation can see. Evidence, not a verdict.

Ready to tune the 99?

Paste a decklist or a Moxfield link — you'll have swaps in seconds.

Paste your deck — it's free