Jace, Mana Scourge

+1: Destroy target creature. Add mana the colors and number to the mana cost of that creature to you mana pool.
-3: Destroy target creature. Add double the mana the colors and number to the mana cost of that creature to you mana pool.
-10: Exile five target creatures. Add triple the mana the colors and number to the mana cost of that creature to you mana pool.