Play your Commander deck a thousand times before game night.

A Magic: The Gathering app that does two things. It plays your Commander deck out turn by turn so you can see how it performs, and it shows you who in your guild has the cards your decks still need. A guild is a group you trade with in person, like your playgroup or your local game store. It runs on the web, iPhone and Android with one account.

It plays your deck more than a thousand times against the kind of table you pick: casual, high power or cEDH. For each turn you see how much mana you had, whether you played a land, whether your commander was on the battlefield, and how often you had lethal. The table setting changes how much interaction you face and how long games run. Those settings are assumptions we chose. They aren't measured from real games.

Keep using them. You can paste a list in from either one. A deck site knows what's in your deck. TCG Guilds also knows which of those cards you own, which are already in another deck, and who near you has the rest.

No. Paste a decklist or a CSV, say card names out loud, or scan cards with the phone camera (voice and camera are in the phone apps). You can fix any wrong match before it's saved. You can also start with one deck and add the rest of your collection later.

Members of a guild you've joined, and anyone you send a shelf link to. If you're not in a guild and haven't shared a shelf link, nobody sees anything. When you join a guild, its members can search your cards. When you leave, they lose access immediately. A shelf link shows the same up-for-trade cards to anyone who has the URL, until you pause or stop it. How many copies you own, where you store them and your notes stay hidden unless you turn on full detail for that guild. The price you'd sell a card for is never shown to anyone.

Mark your spare cards as for trade, for sale or flex and they go on your shelf. TCG Guilds checks every guildmate's shelf against your decks and shows you two things: cards you need that they have, and trades where you each have something the other wants. You set it up in the app and swap in person. We never handle the cards, take a fee or hold anything in escrow.

Tracking your collection and decks is free, with no limit on cards or decks. The Game Sim is free on 5 of your decks at a Casual table. Premium is $3.99 a month or $39.99 a year. It adds High power and cEDH scores, the Game Sim on every deck, Card Check, Put cards away and Settle a trade with the camera, and a permanent shelf link. It's billed by Apple through the App Store on iPhone or by Google Play on Android, and because it's one account the upgrade works on the web too.

No. TCG Guilds is unofficial Fan Content permitted under the Wizards of the Coast Fan Content Policy. It is not approved or endorsed by Wizards. Card data and images come from Scryfall.