Bryce crouched, and his wings enveloped him. All of the stones would impact upon the wings, and upon scratching them a thin acid would melt them into a goopy fluid, which Bryce's body drank through its pores. this fluid was funneled into a chamber where his stomach used to exist, now used to manufacture biological weapons.
The bullets of the zombies suffered a similar fate, though they did more damage before being stopped. Now Bryce's wings, while before were gray and skeletal, were now pockmarked by red blood and the brown slurry the attacks had been turned into.
"Once chance. Surrender, or die." As Bryce spoke, his body gathered fire within it, quickly mutating his throat, lungs, and intestines to contain it. The fire began rushing through his veins, which had hardened and turned to stone in preparation for this. On his wings, the fire would leak through, dropping embers upon the ground where blood would and should fall.
In the final seconds before this technique was ready, his eyes, mouth, and nose would begin leaking fire, as his body was nearly consumed in the holding of this force of nature.