(Thanks to Zelosse for helping me edit this)

Gormarr was slick with sweat and blood as each of his mighty axes buried deep into the flesh of any Skaven that wandered too close. Ripping his axes free of the worthless rat corpses, the Orc carried his momentum from one wave of Skaven into the next. Despite the burning rage boiling his blood the toil of his efforts was starting to show as he gradually began to swing slower, his armor faring no better as it became scratched and dented performing its function. With the thrum of battle in his heart, and the howl of the werewolf in his ears, Gormarr failed to see the Assassin rat approach. 
Few rarely did.
A roar of pain bellowed from his throat as the Skaven lodged its daggers into his back, breaking him from the battle trance. Overcome by shock and pain he fumbled his Dwarven axe to clatter on the bloody stones as Gormarr swung wildly in a maddened turning swipe at the source of his anguish before thrashing wildly at the flighty blackfurred backpedaled away chittering at its own cleverness. The poison in his veins would be lethal in moments.

Had it not been for the big Orcs monstrous tolerance, aided by Ayses flames. Gormarr had tasted the lesser poison from the rats on the plateau earlier and, while not having a tolerance, his body knew how to keep the Orc swinging..
A roar that was more rage than pain heralded his counter attack. One foot kicking a fallen helmet like a dropped ball to crunch into the Skavens grinning face. His axe took to creature in the shoulder but he was not finished. The rage had not played itself out. In one meaty hand Gormarr tore out his axe and grabbed the rats head, its eyes already fading from the world, and smashed its smug face into the ground with all his considerable strength. The skull burst like a rotten melon to splatter his armor but he cared not at all. 
Retrieving his fallen weapon, the Orc was quick to realize his companions were in need of help and so fought his way to rejoin the others. His entrance came in the form of his axe popping through the back of one of the two stormvermin distracted with Nove.