Sorcerous Squall (Tales of Middle-earth Commander #504)

Sorcery - {6}{U}{U}{U}
Delve (Each card you exile from your graveyard while casting this spell pays for {1}.)
Target opponent mills nine cards, then you may cast an instant or sorcery spell from that player's graveyard without paying its mana cost. If that spell would be put into a graveyard, exile it instead.