Wan Wann, Almighty

+2: Search your library for up to 4 land cards. Reveal them, and put them into your hand.
-4: Search your library for any card and cast it by only paying half of it's converted mana cost rounded up.
-10: Seperate your library into two piles, creatures in one, and everything else in the other. An opponent picks one, and everything inside is cast.