Rulings

• 2020-11-10
  Bell Borca notes converted mana costs only if it’s on the battlefield as a card is put into exile.
• 2020-11-10
  Look at the card in exile, not its previous zone, to determine its converted mana cost.
• 2020-11-10
  If a card in exile has in its mana cost, X is considered to be 0.
• 2020-11-10
  You must follow the normal timing permissions and restrictions for the card exiled by Bell Borca’s last ability. If it’s a land, you can’t play it unless you have land plays available.
• 2020-11-10
  You’ll still pay all costs for a spell cast this way, including additional costs. You may also pay alternative costs if any are available.
• 2020-11-10
  If you don’t play the exiled card, it remains exiled.
• 2020-11-10
  While not on the battlefield, and before any cards are noted for it each turn, Bell Borca’s power is 0.