Chrome Mox

Text:

Imprint — When Chrome Mox enters the battlefield, you may exile a nonartifact, nonland card from your hand.
: Add one mana of any of the exiled card's colors.

Rulings:

• 8/7/2020 If no card is imprinted on Chrome Mox, it can’t add mana to your mana pool. It can never add <img src="/Handlers/Image.ashx?size=small&amp;name=C&amp;type=symbol" alt="Colorless" align="absbottom" /> to your mana pool, even if the imprinted card has a colorless mana symbol in its mana cost.
• 8/7/2020 If you imprinted a multicolored card, you choose one of that card’s colors each time you tap Chrome Mox for mana.