He Became A Monstrous Genius After Obtaining A Time Dilation Artifact

" Ragnarok"

The massive katana hoisted in Kailen’s hands sizzled with immolating lightning , large arcs of blue lightning of several kilometers lunging towards the approaching leviathan.

The arcs of lightning pierced it’s draconic chest, streaming across it’s collosal body.

The monstrosity screeched in pain for the first time ,it’s serpentine body undulating with maddened ferocity.

It let out a roar so loud that the world itself seemed to squirm in fear, as it lunged it’s web like claws towards the human that had dared to wound it, a collosal ball of reddish energy accompanying the claw.

Kailen did not move, he stood still, eyes closed,mind calm, rage stirring.

Then, his voice, barely a whisper, echoed.

" Astral Nova"

The worldly natural energy soaked the katana with sizzling azure lightning.

Then ,he swung the katana, a straightforward, lethal slash.

A beam of lightning followed the slash, tearing through all it came across.