Urkanthos couldn't believe his eyes at what he witnessed. A mere man moved like a blur and with bare hands struck down one of his kin in a single punch. Many things has he felt before, excitement at seeing the coming ruin of Kasr Kraf, bloodlust at seeing the so called "Saint" Celestine flying above the walls surrounded by her prayer witches, power, power that he felt ever since his ascension but now... Now for the first time in millennia he felt fear. He saw Goreclaw's soul be sucked into the stranger, screaming in utter pain and agony as it was consumed. He heard the screams of billions within him ecstatically screaming in joy and agony that another will suffer with them. His own soul saw the roaring pit and burning flame of rage before him. And he heard his God, feeling pain for the first time as part of him well and truly died. Looking around he knew the others heard it too. The shock was evident on everyone's face, even mindless chaos spawn were stupefied. The stranger however was anything but. The gun he pulled out of nowhere screamed like a Slaneshi whore demanding to be fed souls and he obliged. Pulling a trigger once sent a wave of pellets trough a score of cultists blowing away entire chunks out of them. The second blow came as he launched a burning chain at a Bloodthirster, covering the distance between them in a second, bringing the heavy steel barrel right into it's mouth and pulling only to cover all nearby with brain matter and bone. With each death he saw their souls be pulled within the entity in the suit, heard the screams and saw the pit...
Even as shock wore off the entire attack plan was thrown in disarray, the newcomer has shown himself worthy of adorning the skull throne and those who help place it there would surely receive boons uncounted. They charged as one, those already in the city abandoned their positions and scaled down for a chance to get at him, those outside rushed in trampling those less eager before them to death. But the man was anything but done. The chain embedded himself in another Prince and pulled the stranger on top. Rather than shoot he used the head of the demon to jump further into the air and pulled out a strange weapon that pulsed an ominous green in his hands. A moment later came a ball of light and then the blindness. Air was knocked out of Urkanthos as he was sent flying against the city walls. The ceramite cracked like eggshell at force of the impact in the back while the front turned to slag dripping molten metal onto his knees. The strangers weapon moaned in absurd ecstasy as ten thousand souls blinked out of existence. Once again he could hear the screams of anguish and torment not found in even the darkest Slaneshi world, he could hear the hiss of evaporating water, most certainly blood and viscera of his comrades boiling away. It was time to act, to change the tide, to break the green clad stranger and to fulfill his oath to the Gods, for the loss here would surely see him cursed and disgraced. The axe in his hand groaned as he used it to prop himself up into a standing position. Rallying his brothers to him with a mighty bellow, he charged.
The Slayer could hardly care at the odds he was pitted against or the foes he faced. They bore the mark of treason upon them, they sided with forces clearly demonic and were once again assaulting the world of man with destruction in their hearts. He saw them, saw who and what they are when one that calls himself Goreclaw was consumed and it only amplified his hate. Demons, they are creatures acting on instinct, pure evil but with no alternative. Humans though, humans that sided with such creatures, they will get the worst he can give. Already they resumed their charge despite the BFG, but at least he had cleared a field to fight in. He rushed forward, faster than normal human eyes could comprehend. He activated his chainsaw and started cutting a swathe trough the traitor and corrupted, demon and their kin, spilling sinew, bone and blood in a maelstrom of gore and unrestrained violence. Most victims knew their fate only as their faces twisted in horror as bodyparts were detached. Those who were out of chainsaws way he baptized with fire. Blazing inferno disgorged from the shoulder mounted launcher and burnt scores of demons and men, skin peeling to reveal the flesh and fat that fed it further. The screams and breaths they took to feed them only fueled the flame within making the fire grow more bright and violent.
To him, the planeswalker, the Scourer of Umbral Planes, the Titan killer, the Iconoclast, the one that laid waste to hell for countless eons, they were vermin and naught more. Stuck in his own mind and bloodlust he was too late to notice the strike from the back.
"Blood for the Blood God!"
Urkanthos landed a hit. A fine hit with the axehead that sent the cur flying trough cultists. He admired the craftsmanship of the armor, none had withstood a strike from him without being cut in twain. Like with other things, stranger was different. He rose, cracks unlike the ones on Urkanthos' back spreading in the back of his armor, with a limp to boot. But he would not go quiet. A blast from his infernal two barrels cut a cultist in two and killed half a dozen others. And that's when he saw it. The armor mended it's wounds, healed the cracks while the man straightened, having regained his footing and strength seemingly out of nowhere. Oh, not nowhere... Urkanthos now knew. Urkanthos understood. And Urkanthos heard, for above the chants and screams of stranger and his weapons rose a cheer from city itself, the defenders rallied and took heart at this turn and charged forth from the ruins Celestine at the front