ChaosTheory
A fat woman came into the shoe store today...
I don't know if you're speculating that perhaps MB F3/B3-type moves are in the game, but in case you are...1:53 The person playing Sub Zero does a move that looks like a MB F3 in Injustice; with armor and all. Very interesting.
Ice Hammer looks to simply be one of his specials in Cryomancer. The flashing appears to be the indicator for all Enhanced moves so far. You can see in other footage that the Ice Hammer puts the opponent on the ground while the Enhanced version launches.