mtg card dimensions cm What Size Are Magic the Gathering Cards? Playing Card Size - Dimensions

And from there, anyone with a TCG they enjoy knows what happens next

Many players would put it into their decks despite half their lands not being Forests, and as a result this ended up being far less effective than Zuran Orb despite its frustrating casting cost

This means that Errant isnt able to duplicate an Expropriate by herself, but if that Expropriate is already being doubled thanks to a card like Twincast, Swarm Intelligence or Narsets Reversal then Errant can make another duplicate of that duplicate

An early-game Lightning Greaves can help ensure your Commander attacks immediately when it hits the battlefield too