Augur of the Leyline
One AI deck advisor that knows your collection, your decks, and the whole multiverse of cards. Ask it anything — find cards, tune Commander decks, run your collection, and spot combos — and Augur goes and finds the answer.
- Knows your collection
- Approve every change
- Always reversible
An AI deck advisor that actually knows your Magic
Augur of the Leyline is Leyline's AI-powered deck advisor — a Magic: The Gathering co-pilot built on Claude that does far more than answer trivia. Because it's connected to your collection, your decks, and the entire multiverse of cards, Augur can find exactly what you need and take real action on it.
Ask it to upgrade a Commander deck, hunt down budget ramp, identify infinite combos, reorganize your collection, or RSVP to game night — all in plain language. This AI deck building assistant turns a vague idea into concrete swaps, adds, and cuts, and every single change is a proposal you approve or skip. Nothing happens without your say-so, and everything is reversible.
Find any card
Search your library, your collection, and all of Magic by name, color, type, or vibe — then add what you find with a tap.
Tune your decks
Get swaps, adds, and cuts for any Commander or EDH deck. Every change is a proposal you approve or skip.
Run your collection
Add, remove, and swap printings just by asking. Changes apply instantly — and are always reversible.
Spot combos & power
Surface infinite combos, hidden synergies, and Power, Salt, and Fear scores across all of your decks.
Wrangle your pods
See your playgroups, invite players, and RSVP to game nights without ever leaving the chat.
Always in your control
Augur proposes, you decide. Approve or skip every suggestion, and undo any change — nothing happens without your say-so.
Just ask. Augur does the rest.
Talking to your collection should feel like talking to a friend who has memorized every card in Magic. Here's how a request flows from question to applied change.
- 1
Ask in plain language
Open the chat and tell Augur what you want — “upgrade my Atraxa deck” or “find budget ramp in green.”
- 2
Augur goes and finds it
It reads your collection and decks, searches every card in Magic, and reasons about synergies and power.
- 3
Review the proposals
See concrete swaps, adds, cuts, combos, and card picks laid out clearly — each one its own proposal.
- 4
Approve or skip
Accept the changes you like with a tap. Everything applies instantly and stays fully reversible.
From rough idea to optimized Commander deck
Great decks are built one good decision at a time — and Augur is the AI commander deck builder that makes each decision easier. Tell it your commander, your strategy, and your budget, and it returns tailored upgrades pulled from cards you already own and the best options across all of Magic. It explains why each swap matters, flags synergies you might have missed, and surfaces the power, salt, and fear implications of every change.
Want to climb to a higher Commander bracket or dial a deck down for a casual pod? Augur understands power level and helps you tune in either direction. Because it reads your collection, its suggestions are realistic — not a wishlist of cards you'll never buy. It's deck optimization and card search rolled into one ongoing conversation.
One assistant across decks, collection, and pods
Most MTG tools make you jump between a deck builder, a collection tracker, a combo database, and a group chat. Augur of the Leyline collapses all of that into a single AI Magic the Gathering assistant. It moves seamlessly from finding a card, to slotting it into a deck, to checking whether you own it, to inviting your pod to test the new build on game night.
That connection is the whole point of Leyline — everything, connected. Your collection informs your deck advice. Your decks inform your combo detection. Your pods inform your schedule. And Augur is the thread that ties them together, always proposing and never overriding, so you stay firmly in the driver's seat.
Augur of the Leyline, answered
What is Augur of the Leyline?
Augur of the Leyline is Leyline’s AI deck advisor — a Magic: The Gathering co-pilot powered by Claude. One assistant knows your collection, your decks, and the whole multiverse of cards, so you can find cards, tune Commander decks, manage your collection, surface combos, and organize your pods just by asking in plain language.
How is Augur different from a normal chatbot?
Augur is connected to your actual data and can take real actions. It searches your library, your collection, and all of Magic; proposes deck swaps, adds, and cuts; and can apply changes to your collection on request. Every change it suggests is a proposal you explicitly approve or skip — and every action is reversible — so you stay in control.
Can the AI advisor build and improve my Commander deck?
Yes. Ask Augur to tune any deck and it returns concrete swaps, adds, and cuts tailored to your strategy, budget, and power level. It can explain the reasoning behind each change, flag synergies and infinite combos, and help you climb or lower your Commander bracket. You approve each proposal before anything changes.
Does Augur know what cards I own?
Yes. Because it reads your linked collection, Augur can recommend upgrades you already own, suggest cards within your budget, and add, remove, or swap printings just by asking. Collection changes apply instantly and are always reversible.
Can Augur find specific cards for me?
Absolutely. Search your library, your collection, and all of Magic by name, color, type, or even by vibe — “cheap blue card draw” or “graveyard hate for my Golgari deck” — then add what you find with a tap. It’s card search and deckbuilding in one conversation.
Does Augur work for pods and game nights too?
Yes. You can see your playgroups, invite players, and RSVP to game nights without leaving the chat. Augur ties together your decks, collection, and pods so the whole Leyline experience is one connected conversation.
The rest of your MTG toolkit
Paste a decklist, get an instant power & bracket rating — free.
Build, score, and optimize Commander decks with AI insights.
Organize your playgroup, schedule game nights, track wins.
Track every card and its real-time market value.
Fast, beautiful life tracking for every MTG format.
Scan any card for prices, rulings, and legality.
Meet your AI Magic co-pilot
Ask Augur to find cards, tune your decks, and run your collection — all in one conversation. Free to get started.