Check your Commander deck before you sit down to play.
This EDH deck validator reads a pasted decklist, parses quantities, and confirms the format rules that matter: 100 cards, singleton for non-basics, a legal commander, and color identity that matches your leader.

It also understands partners, backgrounds, and companions. You’ll see banned or not legal cards called out, plus a cleaned list with correct names you can copy.

The validator returns a clear pass or fail with specific fixes. It flags duplicates beyond allowed exceptions, warns if the deck is under 100 cards, and highlights cards that break color identity. It also lists any names it can’t find so you can correct typos fast. Use it to audit precons after edits, check upgrades, or verify a list from a builder site.

Paste your decklist to validate your Commander deck now and leave the rules work to the tool.