MTG Deck Tester for Commander

Yes. Open the playtest table or mana simulator and choose a deck. You can try the tools before signing up. An account lets you save a private list and return to its earlier versions.

Use the deck chooser in the tool, or start with Deck Import. Bring a supported public deck link or paste a text list. Check that your commander and all the cards were recognized before testing. If a website blocks the import, use its text export.

Use the playtest table when you want to make mulligan decisions, sequence spells, or practice your first few turns. Use the mana simulator when you want to check land drops and ramp over many simulated starts. Both are more useful when you have a specific question about the deck.

The playtest table lets you draw hands and practice your choices. Look for enough mana to get started, access to the colors you need, and something useful to do. Repeat with several hands so one unusually good or bad draw does not drive your next change.

These tools help you practice and check consistency. They do not measure how often your deck beats other players. Opponents, interaction, sequencing, and your table’s expectations all affect real games. Read each simulator’s assumptions alongside its result.

First check how often the problem repeats. Then review your curve, land count, colored sources, and early ramp in the mana base calculator. A land that enters tapped or produces the wrong color may still leave you unable to cast your early spells.

Keep the original list, change a small group of cards, and repeat the same exercise. Write down what you hoped to improve, such as casting your commander sooner. Check whether the change helped that goal and whether it introduced another problem.

Open the list in the deck builder and save it to My Decks. If you already have a deck in your workspace, the save button above keeps that list. Give versions useful names so you can find the changes after your next game.