Terms of Service

Effective September 23, 2026 · Operated by Event Horizon Learning

These Terms of Service ("Terms") govern your use of MTG Architect ("the app", "we", "us"), an unofficial, AI-powered rules assistant for Magic: The Gathering, and the MTG Architect store, both operated by Event Horizon Learning at themtgarchitect.com. By creating an account, using the app, or placing an order, you agree to these Terms and to our Privacy Policy. If you do not agree, do not use the app or store.

1. The service

MTG Architect answers questions about Magic: The Gathering rules, card interactions, and rulings, using the Comprehensive Rules, published card data, and AI-generated explanations. The app is free to use. We also operate an online store that sells Magic: The Gathering products (see Section 6). We may change, add, or remove features or products, or suspend or discontinue the service, at any time.

2. Answers are not official rulings

Answers are generated by artificial intelligence and may be incomplete or wrong. They are provided for learning and casual play only. They are not official rulings and do not replace a judge. At a sanctioned event, the head judge's ruling always applies. Always check the official Comprehensive Rules and Oracle text when it matters.

3. Your account

You must be at least 13 years old to create an account.
Provide accurate information and keep your sign-in details secure. You are responsible for activity on your account.
You can delete your account at any time from the app; see Deleting your account and data.

4. Acceptable use

You agree not to:

Use the app for anything unlawful, harmful, or abusive, or to harass others.
Attempt to get around rate limits, sign-in, or other security measures, or to access accounts or systems that aren't yours.
Scrape, crawl, or send automated or bulk requests to the app, or use it to build a competing dataset or service.
Interfere with, overload, or disrupt the app or the services it relies on.
Submit personal or sensitive information about yourself or others in your questions.

We may suspend or delete accounts that break these Terms.

5. Content and intellectual property

MTG Architect is unofficial Fan Content permitted under the Fan Content Policy. Not approved/endorsed by Wizards. Magic: The Gathering, card names, card text, and card images are property of Wizards of the Coast LLC.
Card data and images are provided by Scryfall.
The MTG Architect name, logo, and the app's own design and code belong to Event Horizon Learning.
You may use the answers you receive for your own personal, non-commercial purposes.

6. Store, products, and orders

The MTG Architect store sells repacks and other Magic: The Gathering products. The store is hosted and checkout is processed by Shopify; by placing an order you also agree to Shopify's terms.

Who can buy. You must be at least 18 years old (or the age of majority where you live) to place an order.
What repacks are. Repacks contain genuine, previously released Magic: The Gathering cards. Each repack contains the number of cards stated on its product page, with the guaranteed contents stated there (for example, a guaranteed rare or mythic). All other cards vary from pack to pack and are selected at our discretion. Except for what is expressly guaranteed on the product page, we make no promise as to which specific cards, sets, printings, rarities, conditions, or resale values a repack will contain. Repacks are sold as fixed-price products with defined guaranteed contents; they are not a lottery, raffle, wager, or game of chance.
Product descriptions and pricing. We try to describe and price products accurately, but errors can occur. Prices are in U.S. dollars. We may correct errors, change prices, and limit quantities at any time, and we may cancel and refund an order affected by a pricing or availability error or suspected fraud.
Order acceptance. Your order is an offer to buy. A confirmation email acknowledges we received it; the contract is formed only when we ship the order. We may refuse or cancel any order.
Payment. Payments are processed by Shopify and its payment providers. We do not receive or store your full card number. You authorize the charge shown at checkout, including tax and shipping.
Taxes. We collect sales tax where required. You are responsible for any other taxes or duties.
Shipping and risk. We ship within the United States only. Delivery time estimates are not guaranteed. Risk of loss passes to you when the carrier takes possession of the order.
Returns and refunds. Because repacks are collectible and their non-guaranteed contents are randomized, all sales are final once shipped, except that we will replace or refund an order that is defective, incorrect, damaged in transit, or not delivered, and except where applicable law gives you a non-waivable right. You cannot return a repack based on which non-guaranteed cards it contained. Report any problem within 7 days of delivery (or the carrier's marked delivery date) to support@eventhorizonlearning.com.
Resale. Products are sold for personal use; you may resell cards you own, but you may not represent repacks or their contents as official or endorsed products.

7. Third-party services

The app and store rely on third-party services, including Google (Firebase Authentication, Cloud Run, and Vertex AI), Meta (Facebook Login, if you use it), Scryfall, Shopify (store hosting and payments), and TaxJar (sales-tax calculation and filing). Your use of those services is also subject to their terms. We are not responsible for third-party services, and their outages may affect the app or store.

8. Disclaimers

The app, store, and products are provided "as is" and "as available", without warranties of any kind, express or implied, including warranties of accuracy, merchantability, fitness for a particular purpose, and non-infringement, except for any warranty that cannot be disclaimed under applicable law. We do not guarantee that the app or its answers will be accurate, complete, uninterrupted, or error-free.

9. Limitation of liability

To the fullest extent permitted by law, Event Horizon Learning will not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of data, arising out of or related to your use of the app, store, or products, including reliance on any answer it provides. Our total liability for any claim relating to the app is limited to one hundred US dollars (US $100); our total liability for any claim relating to a purchase is limited to the amount you paid for the order at issue, except where applicable law does not allow such a limit.

10. Indemnity

You agree to indemnify and hold harmless Event Horizon Learning from claims, losses, and reasonable expenses (including reasonable attorneys' fees) arising from your breach of these Terms or your misuse of the app or store, to the extent permitted by law.

11. Governing law and disputes

Governing law. These Terms and any dispute relating to the app or store are governed by the laws of the State of Texas and applicable United States federal law, without regard to conflict-of-laws rules.
Resolve it informally first. Before filing any claim, you agree to contact us at support@eventhorizonlearning.com with a description of the issue, and to give us 30 days to try to resolve it informally.
Where disputes are heard. Any dispute not resolved informally will be brought exclusively in the state or federal courts located in the State of Texas, and you and Event Horizon Learning consent to the personal jurisdiction of those courts. Either party may bring an eligible individual claim in small claims court instead.
Your local rights. If you live outside the United States, nothing in these Terms takes away rights you have under mandatory consumer-protection laws where you live.

12. General

Entire agreement. These Terms and the Privacy Policy are the entire agreement between you and Event Horizon Learning about the app and store.
Severability. If any part of these Terms is found unenforceable, the rest stays in effect.
No waiver. Our not enforcing a provision is not a waiver of our right to enforce it later.
Assignment. You may not transfer these Terms. We may transfer them in connection with a merger, acquisition, or sale of the app.
Termination. You may stop using the app and delete your account at any time. We may suspend or end your access if you break these Terms. Sections 5, 6, and 8 through 12 continue to apply after termination.

13. Changes to these Terms

We may update these Terms. We will change the effective date above and, for significant changes, show a notice in the app. Continuing to use the app or store after changes take effect means you accept the updated Terms.

14. Contact us

Event Horizon Learning
Email: support@eventhorizonlearning.com