Pocket Judge — Free Magic: The Gathering Rules Engine, Deck Builder & Tournament Manager

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Rules Engine
Get instant, accurate rulings on card interactions, game mechanics, and comprehensive rules.
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Tournaments
Create and join tournaments with live brackets, round timers, and automatic pairings.
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Forums
Discuss rules, strategy, and deck ideas with the community.
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Deck Builder
Build, browse, and share decks with full card search and mana curve analysis.
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Monthly Giveaway
Report incorrect rulings to earn entries into the monthly Developer Drawing for real cards.
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Tabletop Tournaments
Run tournaments for Warhammer, Legion, Bolt Action, and 20+ tabletop miniatures games.
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Rules Guides
In-depth guides to the stack, layers, combat, Commander rules, protection, and more.
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About the Engine
Learn how the deterministic rules engine works — no AI, no hallucinations, just rules.

🂴 Developer Drawing — Monthly Card Giveaway

Pocket Judge is built and improved by its community. When you report an incorrect ruling while logged into your free account, and your report is the first to identify a confirmed issue, you earn an entry into that month's Developer Drawing. Each validated report equals one entry — the more genuine issues you help us find, the more chances you have to win.

Starting March 2026, we give away real Magic: The Gathering cards to our top contributors every month. Winners are selected at random from all entries earned during the month and will be notified by email. Cards are shipped to the address on your account profile — make sure to keep it up to date.

March 2026 Giveaway: Retro Frame Mox Amber