Formats & Legality
Requires account
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.