Dreamstalker

{1}{b}{g} Nightmare (This creature enters the battlefield with a dream counter on it. You may pay its nightmare cost at any time to remove a dream counter from it. Creatures with dream counters on them are enchantments and lose all other card types.)
When Dreamstalker enters the battlefield or a dream counter is removed from it, up to one target creature an opponent controls gets -2/-2 until end of turn.
The Awakening twisted the Dream into the Nightmare.