There are was no seal. No identifiable movements registered to have alerted Zabuza to the sudden wall of scales and anchor to take the blunt of his blade. But where the length of his blade was a hindrance in such close quarters, Zabuza's spacing was frighteningly accurate; every part of him was a weapon, every thought was a rapid flow of identifying weakness to exploit. Shin to the soft of the stomach, denying retaliation, pushing aggression. Lesser prey succumbed easily to the relentless assault, stunned before they could utter a final prayer to the unhearing, uncaring gods.
Orochimaru was not lesser prey. What might have been a brutal followup strike was instead a sickening lurch of momentum without a terminal point, forcing Zabuza to take a half-step forward to maintain balance. The human body was not meant to contort the way Orochimaru's did. He was boneless liquid that defied every natural law Zabuza readily used to cage and annihilate his quarry. It demanded things of Zabuza that prickled his psyche. His blade trembled for blood, his teeth itched for violence. What came next was nothing short of an onslaught led by a heat-seeking sense for weakness. Zabuza chewed through kunai after kunai like a beast with a taste for metal seconded only by the rising rage to obliterate his foe.
But Orochimaru was infuriatingly, always, just out of reach. The range of his motions were a mere suggestion, extending at times which should have been outside of his reach, twisting in manners that provided ample deflection to otherwise vulnerable targets. It was a fluid adaptation to Zabuza's oppression. Even as the margins of error thinned between their deadly dance, an undercurrent shifted the tides. Strands of long, black hair flowed in the wake of that taunting, elusive prey, and Zabuza saw an opportunity; nothing was beneath him. There was no honor amongst monsters when his fingers seized a fistful of what was truly a beautiful liability to drag Orochimaru's body into the air and slam him into the ground, to be following shortly with the ravenous end of his blade-- whether he split Orochimaru in two was an afterthought.
Mid-swing, Orochimaru's jutsu released, and a sharp pain shot up Zabuza's hand and arm. It bought the slippery Sannin time to roll out of the executioner blade's path, the hateful sinking deeply into the earth before it buckled beneath the force wrought there. Before the pain could truly register, Zabuza instinctively pulled his arm back, before another pair of sharp, intrusive needles embedded in his flesh, a mess of hair and snake coiled and snaring the hunter. Before he could be bit a third time, Zabuza decisively let the hilt of Kubikiribōchō go in exchange for a short tanto knife which allotted him the necessary mobility to sever the serpent from his person, sending the ambomination to writhe and hiss in its pooling blood.
Zabuza staggered back and away from his prey, eyes blazing with an unparalleled wrath. The pain in his bitten arm did not ebb, it intensified, like strikes of lightening carried by the pulse of his veins; venom. Fear was the only human response to such a sickening realization. Abject horror the inevitable end to understanding the implications of such potency in the context of fighting life and death amongst shinobi. How narrow the margins of error has been, all along. And, Zabuza was afraid. He was always afraid. Everything he had was fought for and bought in blood. And Zabuza had long adapted, from a most tender age, that any and everything could be fuel to claw and bite. Anything to kill. Anything to survive. Demon. It's what they called him. It was what he had become.
A brief moment of respite fell over the combatants, Orochimaru's outmaneuver showing in the smug of his face even if his body had been pummeled and undoubtedly broken in a number of places. Not that it mattered for a man whose body structure was a suggestion, an abomination to the natural order. Clever prey. His clever prey. Prey that bit back, prey that played with fire. Prey that had Zabuza heaving as purple veins and bruised flesh radiated from the back of his hand and forearm, heavy. If the necrosis did not kill him, Zabuza suspected the paralysis would.
"Send your fa.. ather my regards."
Ox, Monkey, Hare, Rat,-- Zabuza's envenomated arm struggled to keep up with the demand of his other and the lightning pace it demanded. --Boar, Bird, Ox, Horse, -- chakra churned in his stomach, rampaging bullet beast in embryo-- Bird, Rat, Tig-- but just as Zabuza's pointer fingers steepled to make the seal of the tiger, his now purple hand twitched, seizing and collapsing the seal to that of entwined fingers. Serpent.
Vapor in the air rapidly condensed into a wall of water, a clever anticipation of Zabuza's lightning fast reflexes. Raw aggression had limits. And the monumental task of now having to fight against one's own exertion of chakra, against the progression of an inevitable loss, it would make sense to merely wait until the swordsman had no more fight left and collapsed. That was, until, Kubikiri cut through the wall of water, shattering the chakra that maintained it. Orochimaru used the cover of the behemoth blade to fire his final kunai in the only trajectory Zabuza could have thrown from. Blade for blade, one large, one small, one leapt away from, one sticking with a sickening thud. The last of the water fell, and Zabuza was bleeding from the abdomen, heaving. His vision went double, desperately trying to locate his blade, his foe, if he hit, or--
His right arm was seizing again. It was nearing his shoulder now, and Zabuza had to make a choice, regardless if his for lay dead or was readying the next assault. The tanto blade quivered in his good hand. Loyal arm, turned traitor, allowed to be mourned for about as long as Zabuza had when his graduating class turned into a slaughterhouse. The sharp of the blade slid under his pit.
With a gutteral howl, and it sliced through muscle and sinew, sinking hard against the juncture of bone. Zabuza tried to finish the sickening dismemberment, but the tanto was stuck fast. So he abandoned the handle, digging his fingers in the laceration, around the bulk of his shoulder and grit his teeth. And after a twist, crunch, and pop, the limb was severed, tossed aside like the garbage it had become. Useless, fucking garbage. His remaining good hand plastered to the gushing wound. He was not deluded to believe he would survive.
So there was nothing to lose. He'd take the bastard down with him. And with a crackle, then deafening roar, the surge of his monstrous chakra exploded in what was a visible and sensory aura, dark and loathsome, an oppressive gravity pinning all lesser beings to place.
Kubikiribōchō was a vicious, vile blade, but the monster it found and cultivated was far beyond a meager, starving blade. Demon of the Bloody Mist was his, and his alone.