Willy Wonka

+2: Gain control of target creature. After a full turn of having that creature, it turns into a 1/1 OOMPA LOOMPA token with haste.
-4: Sacrifice X creatures, you gain X life. If at least half the creatures you sacrificed were OOMPA LOOMPAS, you draw X cards.
-15: Destroy all permanents. Search your library for any amount of creatures, then put them onto play tapped.