Jason vs Endless

(Third Person POV)

"What is this?" Endless said as they both appeared in the domain, "A Spatial Spell?" 

Both Jason and Endless appeared in the domain, suspended in the air momentarily. The dark beast looked up at Jason who lifted his forearm in front of his face. 

Jason wiped some blood off one of his arm's cuts and licked it off. 

"Cursed Contract: God Slayer Dominion." 

The air then trembled as the atmosphere changed to a slightly darker one. Endless was still slowly falling to the ground as it felt an odd change in the domain. 

Jason then reared his right arm back, gathering an immense amount of black wind. 

"Black wind...." Endless said, "That's..." 

"Sky God's Tempest!!" 

Jason swung his fist, firing a massive torrent of black wind, hitting the dark beast, sending it straight the ground. The attack was strong enough to create a massive shockwave and explosion of winds as it continued to hit Endless. 

"Sky God's Wind?!" Endless exclaimed, "You....wield God Slayer Magic?!"

"Yup." Jason said as he reared his left hand back

Suddenly, his left fist was engulfed in black lightning. He then swung it forward, sending a massive stream of lightning next to the stream of wind. 

"Thunder God's Cannon!" 

The lightning hit Endless as it combined with the wind, creating an attack of two merged god-slayer elements. 

"W-What?" Endless exclaimed 

The attack then exploded, resulting in a massive shockwave that shattered the ground beneath the dark beast. 

Jason slowly descended as he watched Endless slowly get up. The dark beast patted its arms as it looked at Jason. 

"Not one, but two God Slayer magics..." It said, "I must admit...that is impressive...." 

Jason gave it a smirk, "What's even more impressive is...." He said as he waved his arm up

"Earth God's Crushing Pillars!" 

Suddenly, massive black stone pillars erupted from the ground to strike Endless from all directions. The pillars shattered upon impact, but the force of the attack was enough to stagger the beast as it looked at Jason. 

"I can wield all my God Slayer Magics with no delay..." Jason continued, "Thanks to the cursed contract I had with my Domain." 

Endless looked at Jason, "What are you spewing, Mortal?" It said, "You wield multiple God Slayer spells, all in rapid succession...." 

"Normally I can't do this." Jason said, "But thanks to a contract, I can do this within the domain. Normally, this domain would have us fight to the death, a random sure-hit attack proccing every minute with a chance to strike us. We fight till sundown or the domain eject us, severely damaged...." 

"I see..." Endless said, "So this is one of His spatial spells.....very peculiar...." 

"With the contract made by my blood." Jason continued, "I can change the rules of the domain, only once per day, not like I can use this domain more than twice anyways. I changed the rules, I have until sundown to go all out. My God Slayer Magic is buffed, being stronger than usual. I can also use all of them at once, as much as I want. However, there's only one caveat...."

"And that is..." Endless said

Jason then lunged at the beast, striking it in the stomach.

"Gravity God's Fist." 

The blow was strong enough to shatter the scales of the beast, sending it reeling back several hundred meters. 

"Gahh!!" It grunted in pain 

Jason then jumped above it, rearing his head back as he charged up a breath attack. 

"Sky God's Bellow!!" 

He fired off a massive stream of black wind, the attack hitting Endless square in the chest, causing a massive explosion of wind. Endless was seriously staggered by the two attacks, his scales being damaged, the beast was feeling pain. Something he hasn't felt in centuries. 

"What is this?" It said

"Thunder God's Cataclysm!!!" 

Endless was suddenly hit with massive explosions of black lightning. It felt that each attack was significantly stronger than the last one, despite the first one being the heaviest he's ever been hit by a physical attack. 

"I have to continuously attack you, stacking the attack power of my spells." Jason continued, "If I stop, the power will diminish. So if you don't mind, stand still-"

"Enough." Endless said 

Suddenly, a massive shockwave erupted from the beast, staggering Jason a bit. 

Endless then reached for its face, placing it's scaly claws inside the swirling spiral that it had for a face. 

"I am The Endless.." It said, "My purpose is to carry out the will of the Eclipsed God. I will not be humiliated by a mere mortal." 

It then pulled out a massive black halberd from it's face. The halberd was drenched in a black and oily substance, giving out a thick and foggy aura. Jason noticed that it oozed an insane amount of dark magic power. The air around the halberd was incredibly distorted as if the darkness was corrupting the space itself. 

"This is The Calamitous Edge." Endless said, "A weapon crafted from the blood of the Eclipsed God himself. A single swipe from this weapon is capable of cutting through reality. With this, I'll not only sever you in half, but I will cut through this spatial domain and force my way out. I'll carry out my purpose, capture the Celestial Daughter and devour the keys. For that is my purpose." 

Jason smirked, "Tch." He said, "You didn't even let me finish...."

"Silence." Endless spat, "I am The Endless, I shall not allow a mortal like yourself to speak down to me, you've done well enough, God Slayer, for even forcing me to my back. But it is as far as you can get." 

"I was gonna say that I have very limited time for the domain to close." Jason said, "Much shorter time than it normally is. If I don't kill you by the time it collapses, I'm receive a Curse." 

"And what of it?" Endless retorted, "Your Curse is nothing compared to the pain and death my blade shall give you." 

"Now that we've wasted more time than I'd like, I think I have to end it." Jason said, "Oh well." 

"You're merely an experiment." Endless said, "A cruel joke. The Gods laugh when they watch your exploits. Now, Die."

"Yea, yea, shut the fuck up." Jason said as he clamped his hands together and pointed them at Endless, "You mentioned your purpose, but let me correct you, buddy. Your purpose isn't to carry out the will of your god..." 

Endless noticed a massive shift in the air. It felt an immense pressure coming from its left shoulder, looking at it, it noticed a large dark purple spark. 

"What is this feeling?" Endless said

"Your only purpose in this world is to be my punching bag." Jason said, "You fucking Fodder piece of shit." 

"Gravity God's Singularity." 

Suddenly, a large black hole appeared on Endless left shoulder. The force of the black hole's gravity was extremely powerful, so much so that it instantly ripped out the beast's scales and muscle and sucked it in. 

"W-What is this?!?!" Endless yelled out, "This power!!"

The singularity sucked in a massive portion of Endless's left side of its body, dealing an insane amount of damage. Jason then released his hands, dispelling the black hole in the process. 

"Damn." Jason said, "Even for a couple of seconds, the damage was insane. This magic's crazy!!" 

He then smirked while he watched the towering beasts stagger and stumble on itself. 

"You wanna know something? It's the damnest thing." Jason said, "On the way here, the screen told me something." 

Endless looked at Jason as it released a massive and dark aura, "H-HUMAAAAANNNN!!!!!!!" It bellowed with rage, "I AM ENDLESS, I CANNOT DIE.....I'LL RIP YOUR WORLD TO SHREDS!!!!!" 

Jason then released an aura of black light as he swiped his arm at the beast. 

"The screen said that if I defeat and banish you, I'll get 20 points." Jason said

Suddenly, black light erupted from the orifices of the dark beast, its body shaking violently as it buckled over. 

"Black God's Unholy Smite"

Endless was then engulfed in massive amounts of black light, its body beginning to disintegrate as it collapsed to the ground, the halberd it had pulled out landing blade-first into the ground. 

"And what do you know." Jason said, 

"I was in need of the points."