Myrk Shadowcaster

+3: Search your library for up to 3 land cards. Target creature you control gains deathtouch until end of turn.
-5: Destroy up to 3 target creatures that have a power greater than 2/2. Destroy all opponents enchantments. All opponents lose 2 life, you gain 1.
-15: Flip a coin 3 times, if any land tails, destroy all creatures that are not ghosts, zombies, or spirits. Your opponent looses 5 life, you gain 8.