User blog comment:Super Sub-Zero/Smoke spotted in Mortal Kombat X!?/@comment-4222221-20140615234822/@comment-26454032-20140616001703

People have already spotted in gameplay clips, that when he uses the attack, smoke doesn't come out of his oppenent (basically, the smoke has nothing to do with the attack). As for being a place holder, your right, it could be. However, in other variation animations, they use ACTUAL characters in the game, so why would this one not use an actual character? I mean, they could, but it just doesn't seem right.

So yeah... it might be Smoke, or it might not. No one knows...