Hero of Darkness

Kahn revealed the final divine ability Axel had that made him unkillable at this stage after recalling through his own memories when he was given a choice to select his divine abilities. 

DEATH ABSOLUTION. 

It was a divine ability which made it so that once the user died by a particular method or under a peculiar scenario, he or she cannot be killed by that same method again. 

It didn't matter how many times the user of the divine ability died, once there was a common factor in each death, the user would automatically gain invincibility and couldn't die by the new method as long as a factor or scenario was common from the previous death. 

And the scenarios of the recent death would be registered and stacked up on the next life, making the user no different than an immortal. 

Just when Kahn was lost in his thoughts, Rathnaar inquired… 

[Kid, you said the 'last' divine ability. Even after counting this one, it's still four divine abilities.] he said. 

[Well, whatever his 4th divine ability is… He hasn't used that divine ability because he can't use it in a battle at all.] replied Kahn after analyzing the whole situation. 

And his guess was indeed right. Among all of his divine abilities, Axel couldn't use the Chrono Vision because it wasn't battle related. 

Chrono Vision could reveal the past of a particular place. 

On the surface, it looked like it was for Investigation but in reality, it could help Axel to find anything that he wanted. 

On a scene of a homicide, Axel could use it to run back in past to see who the killer was. 

To find an ancient tomb's or some inherence's secret… Axel could just run back in time and see the secrets or how to overcome the obstacles. 

Sage's Eye could uncover all the secrets in the world, and look through loopholes if there are any.

With the combination of these two, nothing would be hidden from him. Making him unstoppable from finding the truth about something. Even Kahn escaped from it because of his own divine ability called Dimensional Law which these two divine abilities couldn't look through since they were of the same rank. 

[Every single one of his divine abilities is chosen to complement each other.] he iterated. 

Which was indeed the truth. If Kahn chose his divine abilities while thinking about the long run, so did Axel. 

Soul Eater gave him extra lives because Saint's souls were rare but not extinct. That would make him unkillable. 

With Blood Monarch, he had the strength and unending supply of an army in a large-scale battle that could even overthrow an empire's army because no matter what, he would get an indefinite supply of blood on a battlefield. Added with his true form which had a tremendous supply of blood, he could even take down an empire's army by himself. 

And Death Absolution would basically make him an immortal on top of it… this was the main reason why even Demiurge Val Arhlem, the Pope himself believed that Axel could even kill the Demon God in the future. 

----------------

Sizzle!! 

Axel's entire body melted under Rudra's corrosive magma. However, Axel reverted to his previous state again in just 4 seconds, developing another immunity from this method of death. 

"Dammit! He's becoming invulnerable to all types of attacks at this point." cursed Kahn as he saw Axel grinning at him. 

They were just diminishing their chances to kill Axel and now, even Rudra's attack was used up and Axel received immunity from it. 

Kahn then realized something. In mere moments, he realized why Axel didn't die in his 8th life. 

And Kahn could pinpoint as the main reason was something he did himself. 

Dimensional Domain! 

Axel had already died at the hands of others, inside their domains and after Kahn killed him on the account of his last life… Axel had already died under dimensional domain after receiving backlash his summoned Fire Deity aka Kagutsuchi disappeared. 

The dimensional domain was a common factor after dying for the 7th time and thus, Kahn couldn't kill Axel using Dimensional Cut in the final life. And now… Axel had immunity to all the attacking methods they had. 

Kahn on the other end was already out of space force, having barely 5% left and even opening a void crack was risky because Axel would be able to reestablish his connection with Amaterasu if Kahn chose to do so. 

"All of you… retreat!" ordered Kahn and all the subordinates stopped killing Axel. 

At this moment, Axel was immune to all forms of attacks and skills they could use to kill him again. Kahn had also used up all of his tricks and skills and if he wanted to kill Axel for good… he'd have to come up with a completely new, different and bizarre way to get the job done. 

"Ha ha ha! There's no point now, Salvatore. I have turned invincible to all the means you could use to kill me." said Axel with a coquettish tone. 

"Don't be overconfident, dipshit. It's not like none of the previously chosen heroes hadn't selected Death Absolution as their divine ability. 

They still died anyway. I'll just have to be a bit creative and you're a dead man." said Kahn, showing no sense of fear. 

[Looks like I have no choice but to use it.] thought Kahn and deactivated Drakos Armor, unsummoned Lucifer and removed Dimensional Domain. At this moment, Kahn was willing to go to the extreme after a very long time. 

Axel on the other end felt all of his physical strength of a peak 3rd stage saint returning as he too looked forward to a deathmatch with Kahn. 

SHRILL!! 

An ear-deafening and soul-shaking shrill filled the 5 kilometers region as a massive burst of black and red aura filled with insurmountable pressure and bloodlust resonated in the surroundings. 

Even Venessa felt like she was standing against a predator even though she wasn't the main target. 

Crack!! 

Crackle!! 

"What the hell is this… don't tell me Kahn isn't a human either." she spoke after Kahn's transformed figure was revealed as the dense black and red aura finally dispersed and his new appearance came into everyone's sight. 

A gray-skinned man with long and sturdy black horns, each having 3 consecutive stackings of Dragon, Basilisk and True Demon horns in its being appeared in the middle of the battlefield. Pitch-black dragon claws, broad shoulders, and a ripped body of a bloodthirsty being flew firmly in the air.

Most of his body was covered in black patterns and visible magma running through his veins; akin to a tyrannical demon. 

There were layers of Basilisk and Dragon hide, having waistlengh white hair in addition. A red glow emitted from the center of his chest while two sharp fangs came out of his mouth as the man kept releasing a domineering and oppressive aura. 

Dark red eyes with yellow snake-like pupils in them glimmered brightly as this demonic being started at Axel, exuding his intense killing intent. 

Even Axel felt a sense of uneasiness because he felt like the being in front of him was no weaker than himself.

Kahn had decided to discard all of his previous methods and skills as he chose to decide the final victor with the good old fashion of fighting with pure raw strength. 

Because at this moment… After 3 and half years of gap, Kahn was finally using the… 

Asura Mode!