Chosen of Khorne.

After being reborn at the hands of the Ritualmaster on the field of battle against Revenga, Yashnark dug his fingers into the apothecary's abdomen, blood running down his hands. He released the Ritualmaster's lifeless body and returned to the fray. His claws have remained razor-sharp every since.
It is believed the Blood God bestowed this gift upon his Bloodhorned thrall.

Chosen of Khorne.

After scoring twice in the against Revenga, Uruš clutched his head and began writhing in pain. It took some time for him to recompose himself. Once he had, he was not the same.
It is believed that the Blood God has bestowed his own visage upon the face of Lord Uruš.