Explain the Card app icon
W U B R G AI deck builder & rules companion · iOS

Any deck.
Any card.

Pick a commander and let AI build you a complete, legal Commander deck. Or point your camera at any Magic card for a clear, plain-English explanation of what it does.

Decks
Rules
Interactions
Ask any MTG rules question…

Free on the App Store · One free AI call a day, no account needed

Pick a commander, set a power bracket, cap the budget, and describe your strategy in your own words. Moments later you're looking at a complete, legal 100-card Commander deck, organized by role, with a game plan for how it wants to play.

Example build
CommanderThe Ur-Dragon
Bracket4 · Optimized
Budget$20 / card
Strategy“Dragon tribal, go wide with big flyers”
Real brackets. Wizards' Commander Bracket System is enforced for real — Game Changer limits and combo rules included — so a bracket-2 deck really is a bracket-2 deck.
Any strategy. "Goblin tribal," "pillow fort," "lands matter" — describe it your way, no deckbuilding jargon required.
Grounded, not guessed. Every card choice is checked against real legality and the actual rules — not a chatbot improvising from internet folklore.
Explain the Card is unofficial Fan Content permitted under the Fan Content Policy. Not approved or endorsed by Wizards. Portions of the materials are property of Wizards of the Coast. © Wizards of the Coast LLC.

Point your camera at any card and it reads the name on the spot, then explains what it does in plain English — keywords unpacked, edge cases and all. Scan two cards together to see exactly how they interact.

Live example
Valgavoth, Harrower of Souls 2 B R Legendary Creature — Elder Demon DSC · 6

Valgavoth, Harrower of Souls is a 4/4 flying Demon that grows stronger and helps you draw cards whenever an opponent loses life for the first time on their turn. It is difficult for opponents to remove because they must pay 2 life to target it with a spell or ability.

Flying — This creature can only be blocked by other creatures with flying or reach.

Ward — Whenever this creature becomes the target of a spell or ability an opponent controls, that spell or ability is countered unless the opponent pays the specified cost.

Worth knowing:

The ability only triggers once per opponent per turn, even if they lose life multiple times.
If an opponent has already lost life before Valgavoth enters the battlefield on their turn, its ability won't trigger for that turn.
The ward cost is paid in life, not mana — a significant tax on your opponent's resources.
Flying Ward—Pay 2 life. Whenever an opponent loses life for the first time during each of their turns, put a +1/+1 counter on Valgavoth and draw a card.
Explain the Card is unofficial Fan Content permitted under the Fan Content Policy. Not approved or endorsed by Wizards. Portions of the materials are property of Wizards of the Coast. © Wizards of the Coast LLC.

Type a rules question in plain words and get a precise answer, tuned to whatever is happening at the table.

Any question. Stack timing, replacement effects, tournament edge cases — ask the way you'd ask a friend who knows the rules cold.
Any language. Ask in German, get Wizards' official localized terms back — Ward → Abwehr, not a literal translation.
Saved on device. Every scan and question is kept on your phone, free forever, so your history is always there.
Explain the Card is unofficial Fan Content permitted under the Fan Content Policy. Not approved or endorsed by Wizards. Portions of the materials are property of Wizards of the Coast. © Wizards of the Coast LLC.

The card data is free because it should be. The AI is metered, because every answer has a real cost.

Free
Every lookup, oracle text, ruling, combo and your full history — plus one AI explanation a day.
$0
Credit pack
50 AI explanations that never expire.
$0.99
Premium
500 AI explanations a month, shared across every feature.
$2.99/mo
Premium, yearly
The same 500 a month, billed once a year. Best value.
$19.99/yr
Explanations, interactions and questions use 1 call each; a full deck build uses 5. No account required to look things up. Unofficial Fan Content — see the legal note below.
Explain the Card is unofficial Fan Content permitted under the Fan Content Policy. Not approved or endorsed by Wizards. Portions of the materials are property of Wizards of the Coast. © Wizards of the Coast LLC.
Reviewing an AI-built Commander deck for The Ur-Dragon, showing bracket, budget and strategy before generating

Pick a commander

AI builds your deck.

Choose a commander, set a power bracket, cap the budget, and describe your strategy in your own words — dragon tribal, pillow fort, lands matter. Moments later you're looking at a complete Commander deck: 100 cards, legal, on budget, true to your commander's colors.

A finished Commander deck for Valgavoth, Harrower of Souls, grouped by card type and sorted by mana value

Built for your table

Commander decks that actually pop off.

Wizards' Commander Brackets are enforced for real — Game Changer limits and combo rules included — so the deck you bring matches the table you sit down at. Organized by role: ramp, removal, card draw, wincons, synergy.

Scanning Questing Beast with the camera and reading a plain-English explanation of what it does

Scan any card

Finally understand what your cards do.

Point the camera at a card: recognition is automatic, no shutter, no typing. Oracle text, rulings, market prices and legality appear free, with no AI call — one tap gets a plain-English explanation of what it does and how it's actually ruled.

An explained interaction between Heliod, Sun-Crowned and Walking Ballista, including a step-by-step infinite combo

Scan two cards

Know each interaction and combo.

Do these two cards combo, or does one shut the other down? Scan both and ask. You get the stack interactions, replacement effects, state-based actions and tournament edge cases, reasoned out step by step.

Home screen showing saved card explanations and a rules question, all kept free on device

Ask anything

Build decks. Settle rules. Ask anything.

"Can I respond to this spell?" "Does my creature survive −2/−2?" Type any rules question and get an answer tailored to your board, in your language. Every scan and question is saved on your phone, free forever.

A second Commander deck, Council of Four, shown in grid mode

Magic, wherever you are

Widgets, Siri and Spotlight.

Card of the Day and Today's Commanders widgets on your Home Screen. Siri answers rules questions hands-free. Your cards and decks show up in Spotlight search. And the full Comprehensive Rules travel with you, searchable offline.