Rulings

• 2009-05-01
  Once Meddling Mage leaves the battlefield, the named card can be cast again.
• 2009-05-01
  You can name either half of a split card, but not both. If you do so, that half (and both halves, if the split card has fuse) can't be cast. The other half is unaffected.
• 2009-05-01
  If a card with morph is named, that card may still be cast face down. Face-down cards have no names.
• 2009-05-01
  No one can cast spells or activate abilities between the time a card is named and the time that Meddling Mage's ability starts to work.
• 2009-05-01
  Spells with the chosen name that somehow happen to already be on the stack when Meddling Mage enters the battlefield are not affected by Meddling Mage's ability.
• 2009-05-01
  Although the named card can't be cast, it can still be put onto the battlefield by a spell or ability (if it's a permanent card).