Similar to some of jmmeye2's suggestions:
[ol]
  [li]Incantation that allows the mage to take an extra card during the planning stage[/li]
  [li]Creature that targets a creature and flips its action marker (active to inactive, or inactive to active)[/li]
  [li]Attack spell that targets a mage (friendly or non friendly). The player casting the spell picks a card in the mage's hand, and the targeted mage returns that card to the spell book and replace it with another card with a lower mana cost.[/li]
  [li]Attack spell that targets a mage and plays a card from the mage's graveyard[/li]
[/ol]