Obscuring Æther
Card Text:
Face-down creature spells you cast cost 1 less to cast.
1 + Green: Turn Obscuring Æther face down. (It becomes a 2/2 creature.)
So I have a question about this card from Dragons of Tarkir. Does this mean that if I have three of these, I can just place cards face-down? Or does it only work for the cost so that you can flip it?
Thanks!