MTL - Valkyrie of the Marvel Universe - ~ Please help me to think of a battle pattern

Han Yang never thought he would one day sell himself into a marriage with another man. He believed his life would be mundane but that man, named HeLian Qing, broke his pre-planned life. Parental debt, a child’s compensation, he had no chance whatsoever to resist, he has no ability to resist.

Li Xuehao found a secret of monasticism in the cover of the genealogy. After spending ten years, he finally succeeded in building the foundation. Unexpectedly, he was eager to get rid of the evil spirits. After his death, he was born again in Yokohama, Japan, and was attached to Sakura, Tsurumi. The story of the high school student Gao Zhonghao in the college, the story begins here…

- Description from Shubaow (Translated)

Mystery is the nourishment that keeps me from being ordinary.

It has been 20 years since he came to a world similar to the modern European background. With his early wisdom, Fei Lin learned a skill and finally became a decent person.

Originally thought that he would marry a wife and have children and live this life in a dull way, but found that there is another world under the shadow of the world.

In that world, there are occultists who practice esoteric techniques and master extraordinary powers.

It is weird to spy on humans in the dark and feed on humans.

There are evil god believers who worship the evil god, please the evil god through bloody sacrifices, and exchange power from the evil god.

There is an evil god who wanders outside the world, peeps at the world, and only infiltrates the power of scales and claws, which is enough to cause people to fall.

With the mystery as nourishment, he is no longer ordinary after 20 years of ordinary.

- Description from novelbuddy

”What is justice? What is evil? If given a second chance, I would no longer care about the opinions of others and only seek immortality.“With a cry to the heavens, Dusk Vale met his tragic end.But fate had other plans. He was granted a mysterious power that sent him back 300 years to the moment everything began.In this new life, he would live without concern for the judgments of others. No more restraint, no more hesitation — he would use any means necessary to achieve true immortality.What is the best villain? In my opinion, it is someone who does a lot of evil but is still considered a good person by some people. Someone who never really thinks about others but has many people who are loyal to him.Can one person defeat the entire world? Stupid, humans are born on the same level; surpassing one person is already not easy, let alone surpassing all of them combined. That is why Dusk will absolutely not act alone in this life.