Classified as a Brute, Krieg has the power to manipulate kinetic forces in a variety of ways, though it is most powerful within a certain radius of himself. Hostile forces will move slower or get disrupted/deflected by a controlled, unconscious alteration of air friction/resistance. Hostile enemies may have trouble breathing. In addition, his actions have increased results for energy involved; he can punt someone to send them flying through the wall, as demonstrated with Manpower.
Krieg's psychology was such that he had resistance to Master effects.
↑But Lung was part of the handful I’d fought where I could input fear and get anger. Dean had run into the same thing, with emotions other than fear returning the same output.
Some people, especially those of a more feral stripe, just processed things in a different way. The upside was the tactical advantage in it, if I could adjust my expectations fast enough.
The downside was that I had to make that adjustment. Most of my costumed fighting experience was that my enemies would hesitate, get sloppy, or back off, but Lung, like Bitch, like the cooler but still dangerous Krieg or the seemingly unflappable Victor who would still act differently when under the influence of my power, attacking faster and more recklessly. They were the people who were angry at the world, or those with the natural predisposition to fight rather than fly. - Excerpt from Gleaming 9.11