MTL - Phoenix Destiny - Chapter 776 Wakagi

Dynasties rise and dynasties fall, like the tide washing the sand.

A teenager named Evan Mason was reincarnated into the magical world of Harry Potter and goes to school at Hogwarts!
With only his knowledge of the future and great talent for magic, he takes the path towards the top of the magic world, only to realize that ever step he took, changed everything!

- Description from Novelupdates

To save a doomed fantasy world, I killed the main characters, then destroyed the game world, and fell into another timeline as the academy's top seat and rival to the protagonist.Now, I'm trying to save the world and steer it towards a better ending…But I'm the final boss.

Martial Soul, the essence of innate talent, encompasses the grade of countless stars, with one to three stars being Low Level, seven to Nine-star being Advanced, and a Ten-star Martial Soul as a Heavenly Gifted Spirit, known as Spirit Martial Soul, one in ten thousand!The world asks Luo Cheng: “How many stars is your Martial Soul? What grade?”Luo Cheng stares at the endless galaxy within his Martial Soul and mutters:“That's a lot of billions, it's hard to count!”