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Formats & Legality

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Grimoria validates your deck against format rules in real-time.

Supported Formats

Commander, Modern, Standard, Pioneer, Legacy, Vintage, Pauper, Brawl, Historic, Alchemy, Explorer, Timeless, Oathbreaker, Premodern, Penny Dreadful, Duel Commander, Old School, and Casual.

Legality Checks

When you set a deck's format, Grimoria automatically:

  • Flags banned cards with a warning
  • Marks restricted cards (for formats like Vintage)
  • Validates card count requirements
  • Checks color identity (for Commander)

Staying Legal

As bans and restrictions change, your existing decks are re-validated automatically. You'll see a warning if any of your cards become illegal in your chosen format.

Related Topics

Creating a Deck
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