Then when it smashes face, you'll make a Treasure, and your next instant/sorcery cast is copied for free
I have mixed feelings on Guiding Voice, but this could be because originally I didnt realize it was a sorcery so I just chump-attacked with my entire battlefield in one of my games and I still havent forgiven it for that
Still, whether or not WotC runs with this idea, Spellbinder is an excellent omen for whites future card design
Whenever a creature with power 1 or less is put into your graveyard from the battlefield, you may return that card to the battlefield at the beginning of the next end step if Shirei, Shizos Caretaker is still on the battlefield. Basically, youre going to fill the deck with cards like Viscera Seer, Zulaport Cutthroat, Yaroks Fenlurker, and Big Game Hunter, and just recur them for all of time until you win the game through sheer force of will and the little people fighting back