Import a deck

Create a Deckonomicon deck from a pasted list or uploaded file, then review the imported cards before publishing a version.

Last updated May 24, 2026

Before you start

Use deck import when you already have a list from another tool, a tournament report, or your own notes. The import creates a deck record that you can edit in Brewing.

Choose the deck name, format, and visibility before importing. Visibility controls who can see the deck record; publishing a version is a separate step after the deck exists.

Supported formats

Deckonomicon can import pasted text or uploaded files. File upload accepts .txt, .dek, .dck, .dckn, .yaml, and .yml files.

Plain text uses one card per line with a quantity and card name. MTGO uses the same core line format and may include a SIDEBOARD: header. MTG Arena uses section headers such as Commander, Deck, and Sideboard. Deckonomicon format is YAML and can carry deck metadata, zones, and selected printings.

Plain text

4 Lightning Bolt
4 Monastery Swiftspear
18 Mountain

2 Abrade
2 Tormod's Crypt

MTGO

// Mono-Red Aggro
4 Lightning Bolt
4 Monastery Swiftspear
18 Mountain

SIDEBOARD:
2 Abrade
2 Tormod's Crypt

MTG Arena

Commander
1 Miirym, Sentinel Wyrm

Deck
1 Sol Ring
1 Arcane Signet
1 Command Tower

Deckonomicon YAML

name: Molten Archive
format: commander
cards:
  maindeck: |
    1 Sol Ring
    1 Arcane Signet
    1 Command Tower
  commander: Miirym, Sentinel Wyrm

Import the list

Follow the import flow from Brewing. Keep one action per field.

Open Brewing.
Select Import.
Set the deck name, format, and visibility.
Choose the Text format that matches your list.
Choose Paste list or File.
Paste the list into List, or choose a supported deck file.
Select Import.

Result

Deckonomicon creates the deck and resolves the card names it can identify. Review the deck before you rely on it for matches, especially if the source list used nicknames, unusual punctuation, or old card names.

Importing does not publish a deck version. Publish after the list is accurate and ready to be used as a stable record for match tracking.

FAQs

13 searchable answers

Frequently asked questions about using Deckonomicon.

Read the FAQs