Yaron, God Dragon

+3: Target player exiles a nonland card from his or her hand. Until your next upkeep, you may spend mana as though it were mana of any other color.
-X: Choose up to X colored permanents target player controls. That player exiles those permanents
-12: Nicole Bolas, Ascended, deals 7 damage to target player and each creatures that player controls. that player exiles 7 nonland permanents.