MOX for Windows

Download and get started with MOX

A public-beta assistant for MTG Arena: in-game counter, Draft support, decks and statistics. You can get started without creating an account.

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Download MOX for Windows

For Windows. Extract the ZIP to a folder and launch Mox.exe. If Windows blocks it, the safety steps are below. No account is needed.

Official MOX mascot: raccoon with a purple hood and gem
First steps

Get started in a few minutes

1

Download and extract

Download MOX-x.y.z.zip and extract everything to a regular folder. Do not run the EXE directly from inside the ZIP.

2

Start MOX

Open Mox.exe, then open MTG Arena. MOX detects Arena and the data the game makes available.

3

Complete first-time setup

MOX guides you through five steps. You can leave every data-sharing option off and still use its local features.

The five steps in the app

  1. Choose the language, theme and window size.
  2. Check Arena's Detailed Logs; you can continue even if Arena is closed or its logs are unavailable.
  3. Choose separately for Matches/Meta, Draft and Research. Research starts only after you confirm it in the notice.
  4. Choose whether to link your MOX Account and, separately, whether to enable 'Decks in your account'. Linking the account alone does not sync decks.
  5. Review the summary and finish. If you stop partway through, no consent is confirmed.

If you already used MOX, your existing choices remain in place and first-time setup does not reappear.

Inside the app

The three tools

In-game counter

Run it alongside Arena: it counts remaining cards and lands and shows probabilities based on what the match has made observable. It cannot see hidden information and does not make plays for you.

MOX in-game counter showing cards and probabilities

Draft Assistant

Open it before entering the Draft. It ranks the pack, shows ratings and context and, at the end, proposes a deck base from your pool.

MOX Draft Assistant with ranked cards and ratings

Your decks

Find your Arena decks, compare them with your collection and review local statistics from saved matches. You can copy a deck or save it to a file to share it.

Arena deck list in MOX with collection data
Your local collection

Collection

Update and open the file

On the dashboard, the Collection card provides Update and Show file. Open Arena, sign in and wait for the home screen before updating: MOX reads the data available in Player.log and in Arena's card database, then saves collezione.json on your PC.

Manual extraction under Options → Diagnostics uses the same data but shows technical details in a window, which is useful if the dashboard update fails.

MOX can start and use local features without Detailed Logs. To follow Drafts and show wildcards, gold and gems, Arena must write detailed logs and the inventory InventoryInfo. In Arena, open Options → Account, enable 'Detailed Logs (Plugin Support)' and restart Arena when needed.

What is updated and where it is used

Owned cards, wildcards, gold and gems reflect the latest inventory that Arena wrote to the log. After purchases or crafting, return to Arena's home screen and update again: values are not read in real time.

If the inventory is unavailable, resources are shown as unknown, not zero. If InventoryInfo is present but omits a resource, Arena indicates a real zero. Select Check again after enabling the logs or receiving a new inventory update.

The collection powers deck-cost calculations and comparisons in Your decks and Deck development and, when available, the Draft Assistant's collection context.

Local archive

Your decks

Choose, review and share

Select a deck to see its list, local statistics and collection comparison. You can use Copy to clipboard, Develop a copy, Save as…, Shareable image or Save all.

Saved versions and archived projects remain available through their controls. A development copy does not change the original deck in Arena.

First load and cache

The window appears immediately. If the card cache is cold, a background process may take a while to complete names and details: the indicator shows X/Y progress and the window remains usable. Later loads are normally faster.

If a deck does not appear, open Arena, wait for decks to load and try again; then update the collection if the owned/missing comparison is out of date.

Projects separate from Arena

Deck development

Create and manage a project

Use New from list or Develop a copy from an Arena deck. In the project you can rename, duplicate, archive or restore; deletion is available after archiving. Arena list and Copy for Arena prepare the list for the game, while Update collection and Show collection file refresh the local comparison.

Cards and cost · Checks

Cards and cost separates the main deck, sideboard, commander and companion when present and shows owned and missing copies and wildcard needs by rarity.

Checks flags structure issues and compatibility with supported formats. This guidance is based on available data: always check the list directly in Arena before spending wildcards.

All visible controls

Options

Appearance

Choose the language, light or dark theme, window size and animated background.

Data and privacy

Matches/Meta, Draft, Research and 'Decks in your account' are four independent choices. Here you can check submission status, optionally link your MOX Account, and request deletion of Matches and Drafts.

Research has an in-app notice, a short confirmation to join, and separate controls to withdraw consent or request deletion. If the network does not confirm immediately, MOX keeps the request and retries.

Tools

Deck cost compares a list with your local collection; Translate a list prepares card names for Arena.

Diagnostics

Here you can manually extract the collection, create a diagnostic package, use safe mode, check updates and manage backups.

See data sent to the website (JSON) shows the technical format for Matches, Draft and Research. Opening this window does not grant consent or send data. Arena's log is added to a diagnostic package only if you select it separately.

During a match

  1. Open MOX.
  2. Open MTG Arena.
  3. Open In-game counter.
  4. Enter a match.
  5. Let MOX update the panel while you play.
  6. Afterwards, statistics and contributions depend on the consent choices you made.

During a Draft

  1. Open MOX before the Draft.
  2. Open Draft Assistant.
  3. Enter the event.
  4. MOX follows the packs and picks that Arena exposes.
  5. Use rankings and context to support your decision.
  6. At the end of the Draft, review the proposed deck.

MOX helps you assess your options; it cannot guarantee Draft or match results.

After playing

Decks and statistics

Open Your Arena decks, choose a deck and review matches, wins, losses and the other available metrics. The collection comparison shows what you own; from here you can also copy the deck or save it to a file.

Local statistics for a deck in MOX
Under your control

Consent and privacy

MOX works without an account. Matches/Meta, Draft, Research and 'Decks in your account' are separate choices in Options. Research starts only after confirmation in its notice. Linking an account does not enable deck sync.

See what MOX sends · Read the privacy policy

Only if you need it

Optional account

You do not need an account to use the client. To see decks, matches, Drafts and linked devices on your personal site, sign in with Google or Discord, generate a code in the Account section and enter it under MOX → Options → Link your account. The one-time code expires after 10 minutes.

To sync decks to your private account area, separately enable 'Decks in your account' under Options → Data and privacy. Deck names are included in private sync and do not enter the public Meta.

Open My MOX

Safe startup

If Windows blocks MOX

If Mox.exe runs, use it. If Windows prevents the EXE from starting, open this once from the package: INSTALLA-MOX.bat; when it finishes, start MOX with MOX.bat. Do not disable Windows Defender or other protections. If the issue persists, contact Support.