Archenemies

I am currently in my tower, which hovers above the worlds, while the battle I am currently watching takes place in the world of dragons.

On the left is a hooded, humanoid, demon robot hybrid dressed in black:
The Prince of Death - in short Prince
His clothes are completely torn and have holes, decorated with skulls in many places.
His face is covered by a steel mask resembling a ninja's.
His right wrist has a huge, built-in steel blade, while his left hand is a complete steel replica, which he lost in his first fight against his archenemy.
In his left hand she holds a katana, the hilt of which is black, the tip of which is decorated with a miniature skull, while its blade resembles a fish bone.

While on the right is a humanoid, black-armored entity:
The Dark Lord - in short Dark
His black armor is decorated with red and gold lines.
His head resembles a crow's, with sharp teeth, upward-curving spikes on its nose and top of his head, and his eyes are red.
In his right hand he holds a katana, the hilt of which is golden, while its blade is red and countless desperate faces floating in it - this is his self-made katana: The Chaos Eater

The fight has just begun.
<SKILL: SHADOW CUT>
Dark disappeared from his place in the blink of an eye and at that moment it was as if a blade had appeared in front of Prince's neck...
<PASSIVE: I SEE EVERYTHING>
But at that moment Prince suddenly disappeared and appeared further behind Dark.
Dark turned around and said with a smile:
"I always forget that tricks like that don't work on you."
"..."
Prince didn't answer anything.
"I see you're still as talkative as ever."
While Dark answered, his hand seemed to throw something forward.
"You killed my father and now I finally get revenge on you!"
<BUFF: I CAN'T FALLEN>
At that moment, purple glowing symbols appeared on every part of Prince's body, and his eyes also burned purple.
Prince suddenly started to run forward, but...
<SKILL: AIR BOMB>
...a mint-colored explosion appeared from the ground below.
<PASSIVE: I SEE EVERYTHING>
Prince disappeared again, then suddenly appeared in the air.

"Ha! I knew you would appreciate this too."
Dark said as if he knew in advance that this would happen.
"..."
Prince in the air didn't answer.
"As if I've seen this before" -I thought to myself
"I still don't know why you have to be angry about something that didn't even happen in this timeline."
"Because this happened because of you!"
Replied by Prince, who had already arrived on the ground.
"He had to die because he was evil and wanted to bring forward the time of Judgment."
Dark replied calmly.
"That's exactly why you have to die too!"
"..."
Dark didn't answer anything, but his eyes started to glow green.
<POWER: TIME STONE>
At that moment, Dark released his katana, which began to float as if it had a life of its own, and reached back with his right hand.
A green vortex appeared halfway down his hand and the end of his hand disappeared.
The end of the disappeared hand appeared behind Prince's back, also from a green vortex.
<PASSIVE: I SEE EVERYTHING>
Prince dodged the attack again, disappeared, then reappeared on the other side.
"It's good that you avoided this, because if you hadn't, you wouldn't be alive anymore."
Said Dark.

Then two giant skeletal hands grew out of Prince's back.
<BUFF: WIND BLADE>
Dark's katana began to burn mint green, then leapt into the air.
<SKILL: EXPERT WIND THROW>
While in the air, he made three quick cuts in the air, then it seemed as if the air formed blades that flew at lightning speed towards Prince on the ground.
After a huge explosion, Prince had two skeletal hands bent over him, and he was fine.
"This won't be enough here."
Answered by Prince
"It's okay, you wanted it."
Dark replied a little angrily.
<SKILL: AIR EXPLOSION>
A huge mint-colored sphere appeared between them, like a vortex, it started sucking things into itself and then exploded.
Most things in their surroundings were destroyed after the explosion.

After the smoke cleared, they were both on the ground, preparing for the next attack.
<SKILL: I'M THE ONLY ONE>
Prince bent his giant blade and katana backwards and jumped forward.
<SKILL: SWORD DANCE>
Dark also bent his katana back, then he also jumped forward.
At that moment, both of their blades met one after another at a speed that the eye could no longer follow.
After they finished this, they both jumped back.
"I'm starting to get fed up with this."
Replied Dark, becoming increasingly angrily.
<SKILL: CHAOS BEAM>
In Dark's palm, accompanied by terrible sounds, gathered an orange light from which orange tentacles moved everywhere.
After charging it, accompanied by a terrible sound, a giant orange beam shot out of it, from which orange tentacles also moved.
The beam destroyed everything in sight that remained until now.

After the smoke cleared, they were both still standing.
The skeletal hands were there again in front of Prince, protecting him.
"..."
Dark looked angrily ahead.
<ULTIMATE: CATACLYSM>
At this moment, the remaining plants also burned, the floor turned volcanic and the earth opened up, spewing lava.
Countless orange tentacles moved from the cracks towards the sky.
"I guess you don't want to give up now, do you?"
Dark asked.
"..."
"Of course not."
"Let's finish this now!"
Prince replied.
Both prepared for the final attack and assumed a fighting stance.
Dark's eyes and his katana started to burn red.
Prince closed the giant blade he had built into his right hand.
His eyes and his katana started to burn purple.
They both took their sword in both hands and jumped at each other in hyper speed.
And when their blades met...