Deck Diff
Deck Diff What Pack to Crack

Track exactly what changed since your last physical update.

Stop sorting and reshuffling your entire deck just to make a few changes.

Find exactly what changed in seconds. Update your physical deck to perfectly match Moxfield without the headache.

How to Synchronize Your Paper Deck in 3 Steps

01

Paste Your Moxfield URL

Copy the link to your Commander deck on Moxfield. Works with both public and unlisted decks.

02

Select Baseline Date

Pick the date when you last physically updated or sleeved your paper deck box.

03

Update Paper Sleeves

Get an exact checklist of cards to remove and add. Export Scryfall queries or MTGPrint proxies instantly.

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The Complete Guide to Physical Commander Deck Maintenance

Click to read our deep-dive on 100-card EDH version tracking & diffing

Magic: The Gathering’s Commander (EDH) format is one of the most dynamic and expressive ways to play trading card games. But for players who maintain physical paper decks alongside online deckbuilders like Moxfield, version control is an ongoing headache. Unlike 60-card formats with 4-of playsets, Commander is a 100-card singleton format. Whenever a new MTG expansion release drops or you refine your mana curve, keeping your paper deck box synchronized with your online list becomes a major chore.

Why Physical Deck Synchronization is Challenging

When you modify an EDH deck on Moxfield over several weeks, you might add 7 new staples, cut 5 underperforming spells, and swap 2 lands for utility duals. In paper, finding and updating those specific cards without an automated tracker presents three main pitfalls:

  • The 100-Card Sorting Fatigue: Without an exact changelist, players often dump all 100 sleeved cards onto a table, sort them by color or mana value, and cross-reference card-by-card against a phone screen.
  • Accidental Mana Ratio Distortion: Missing a single land swap or forgetting to remove a cut card can lead to a 101-card or 99-card deck, causing mana screw or illegal tournament presentations.
  • Sideboard & Considering List Confusion: Commander players frequently test cards in their "Considering" or "Sideboard" sections online. Keeping track of which cards were actually promoted to the main deck versus left in a binder is difficult over time.

Timestamp Snapshot Diffing vs. Traditional Changelogs

Most deck comparison utilities require you to manually export old text files and compare static lists. Moxfield Diff introduces a streamlined approach built around historical timestamp snapshots:

Every time you save a change on Moxfield, the platform records a chronological history of your deck's evolution. By inputting your deck URL and the date you last physically updated your paper deck, our engine queries your deck's revision timeline, isolates the exact state of your deck on that historical timestamp, and calculates the net difference against your live list today.

This means even if you added and removed the same card five times between playtest sessions, Moxfield Diff intelligently cancels out intermediate churn and only displays the net changes you actually need to make to your physical sleeves.

Best Practices for Paper Magic Deck Upgrades

To keep your physical Commander decks tournament-ready and organized, we recommend following a systematic four-step upgrade workflow:

  1. Establish a Baseline Date: Whenever you finish sleeving or modifying your physical deck, note today's date in your deck box or phone notes.
  2. Run a Snapshot Diff Before Game Night: Before heading to your local game store, enter your deck URL and your baseline date into Moxfield Diff to generate your exact removal and addition checklists.
  3. Pull Removals First: Open your deck box and pull only the cards listed under "Cards to Remove". Check each card off the interactive checklist as you unsleeve it.
  4. Sleeve Additions & Verify Count: Sleeve the cards from "Cards to Add" and verify that your net card count change matches your expectations (+0 cards for a balanced 100-card swap).

Leveraging Scryfall Queries & Proxy Generation

When upgrading from a large binder or card storage box, Moxfield Diff provides built-in integration with the Scryfall database. You can click Copy Scryfall Search to generate a formatted query string that highlights all your removed or added printings. For players testing expensive staples before purchasing singles, the Copy for MTGPrint tool formats your addition list for instant proxy printing.

Frequently Asked Questions

How do I update my physical MTG deck from Moxfield?

Simply paste your Moxfield deck URL and the date you last updated your physical deck into Deck diff. It will calculate exactly which cards you need to remove and which you need to add, saving you from sorting through all 100 cards.

Can I compare Moxfield decklists by date?

Yes! Deck diff tracks the history of your deck and compares the current decklist to its state on any past date you provide, generating a precise diff.

How do I keep track of changes when the list is long?

Check off cards as you update your physical deck to keep track of your progress when the changelist is long.

Can I share my changes with a friend?

Yes! Once you generate a diff for your deck, simply click the Copy link to share button just below the commander. This creates a custom link that includes your deck URL and the specific date you used, so you can easily send it to a friend and show off your latest upgrades.

Are my recently checked decks saved?

Yes, any deck you check is automatically saved locally in your browser as a "Recent Deck". They will appear at the top of the page with their commander's artwork, making it easy to quickly revisit your decks without needing to copy and paste the URL every time.

Can I pin my favorite decks?

Absolutely! If you have multiple decks and want to keep your main ones easily accessible, you can click the star icon on any deck in your Recent Decks list. Pinned decks will always remain at the front of the list so they never get buried by other decks you check.

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Moxfield Diff is unofficial Fan Content permitted under the Wizards of the Coast 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.

Deck data is sourced from Moxfield. Card images are provided by Scryfall. Moxfield Diff is not produced by, endorsed by, or affiliated with Moxfield LLC or Scryfall.