Elenda, Guardian of Order

+2: Put target creature on top of its owner's library.
-3: Look at the bottom card of your library, you may play it, and you may spend mana as though it was mana of any type to cast it until end of turn.
-12: You get an emblem with "Whenever you cast a noncreature spell you may search target player's library for a card and put it on the bottom."