Whirling Shades

Whenever a nontoken creature you control is put into the graveyard from the battlefield if Whirling Shades is in your graveyard you may exile that creature and put a creature token into play that's a copy of the exiled creature except it's black and a Nightmare in addition to it's other colors and types.
If Whirling Shades would be placed into your graveyard from anywhere except the battlefield exile it instead.