MTL - Start with Batman - Chapter 350 got you

Due to an unexpected turn of events, Xia Fei consumed a Super Gene Optimization Fluid that bore no brand, expiry date, instructions or stated its place of origin.
Our story begins here…

Unrivaled Spear Knight.

The stereotype that knights must use swords is broken by the brightest star of a duke’s family. The hero that brought an end to the empire’s civil war. The name of that person is Joshua Sanders.

Despite his reputation of being called the empire’s unrivaled spear, he was bleeding dark red blood. Not just anyone but by the hand of his own emperor, Kaiser… “Kaiser! Don’t think it will end like this!!” Moments before death, incurred by magic circle, the spear that spent its years together with him, ‘Lugia’, started to emit an enormous amount of energy…

This familiar place, it can’t be… the stable that I used to live in when I was young?

My body became young?! Lugia, what the hell are you?

Joshua returned to his younger self. His ultimate revenge starts here!

Greg watched his world come to an end under the hands of the enemies supported by his fellow species. while blaming himself for not starting the game early or not investing into, or for awakening a trash talent he close his eyes and embraced dead but that was not the end of his story as he regressed to ten years prior to the unfortunate event. with knowledge of the future and determination he buys a gaming helmet and plunged into the game- Apocalypse that signalled the start of something more. with his knowledge of the future, his skills that made him shine even with his trashy talent and the awakening of an ex rank talent, 100% Dodge rate that makes attacking him impossible, read Greg's revenge and rise to the top protecting those he cares about while punishing his enemies

Every myth and legend is a path to Godhood!

When humans enter the interstellar era, ancient cultivation techniques shone with new life. Your genes exist with you! A single sentence showing the true meaning of cultivation. Myths and legends are not a fantasy, there are ancient mythological genes in the bodies of everyone.

The Hou Yi Gene allows you to shoot a hundred miles, using a single arrow to break down the dome of heaven.

The Kuafu Gene allows you to run with flying speed, chasing after the sun and moon.

The Divine Dragon Gene allows you to soar among the clouds, roaming around the starry space.

….

Almost ten thousand years have passed. Feng Lin came from the 21st century to this majestic era that surged forth with great momentum. Based on his understanding on the myths and legends of the ancient earth era, he embarked upon a unique genetic cultivation path.

Monkey Gene + Stonebirth Gene = Stone Monkey Gene

Stone Monkey Gene + ??? = Spiritual Stone Monkey Gene

Spiritual Stone Monkey Gene + ??? = Handsome Monkey King Gene

Handsome Monkey King Gene + ??? = Sun Wukong Gene

Sun Wukong Gene + ??? = Great Sage Equal to Heavens Gene

- Description from Novelupdates