Terms of use

Last updated November 3, 2026

By using Decknomancer you agree to these terms. Decknomancer is run by TJ Giddings LLC.

Using Decknomancer

Deckbuilding is open to everyone with a free account. Keep your login to yourself; you're responsible for what happens under your account. Don't misuse the site: no attempts to break in, overload it, scrape it in bulk, or get around limits like the monthly Assisted Build allowance.

Your decks

Your decks are yours. If you make a deck public or enter it in the weekly challenge, you let other users view it, like it and copy it into their own accounts, and you let us show it on the site. You can switch a deck back to private at any time, though copies already made stay with the people who made them.

Community rules

Be decent. No harassment, hate, spam or illegal content in deck names, descriptions or profiles. We may remove content or suspend accounts that break these rules.

Proxies

Printable proxies are playtest cards for your personal, non-commercial use. Don't sell them or pass them off as real cards.

Memberships

Paid memberships are sold and billed through Patreon and are covered by Patreon's terms. Perks such as monthly Assisted Builds and ad-free browsing apply while your membership is active and connected to your account. We may change perks over time; Founders keep their price as described on our Patreon page.

Magic: The Gathering

Decknomancer is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Portions of the materials used are property of Wizards of the Coast. ©Wizards of the Coast LLC. Card data and images come from Scryfall; see our credits.

No guarantees

Decknomancer is provided as is. Card prices are estimates, Assisted Builds and deck statistics are suggestions, and the site may change or be unavailable at times. To the extent the law allows, we aren't liable for indirect or consequential losses from using the site.

Changes and contact

These terms are governed by the laws of Arizona. If they change, we'll update the date at the top. Questions: [email protected].