Harry Potter : Reincarnated as The Greatest Wizard - Chapter 2 - Professor McGonagall

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates

“monarch of entropy” introduces a cosmic entity of immense power, whose eternal existence was once defined by passive observation. Everything changes when a surprising connection ignites a spark of curiosity and a yearning for interaction. As this King explores his evolving desires, his colossal abilities begin to influence realities on an unimaginable scale. This is the story of a powerful ruler's journey from detached observer to active participant, where every decision, no matter how small or whimsical, creates ripple effects across the multiverse, leading to a series of grand, and sometimes inconvenient, adventures.

The character with the highest difficulty and the worst performance, Baek Yuseol, was considered a trash character in-game because he could not use magic in a fantasy setting where everyone else could.However…[Because the wrong ending has been reached, 90% of Aether World has been destroyed.] [Please reach the “True Ending.”] Suddenly, those words echoed in my mind before I was transmigrated to the Aether World.[You can use the skill “Blink.”] “Just why did I possess this character?”Blink was the only magic skill I had.Surviving in Stella Academy among genius mages, I became the notorious Blink Mage.Alternative title: I Became A Flashing Genius At The Magic Academy

In a peaceful, utopian Earth, a young man is born cursed by the will of the heavens. One day, he awakens… and uncovers the hidden world of the High Humans—the most powerful beings on the planet. His superpower? A rare support ability with healing powers… or is it? From that moment on, a healer who devours lives to grow stronger, just like the worst demons, is born. *** This is a story about superpowers in a distant future, where Earth hides unimaginable secrets. It’s also a journey across universes, filled with battles and discoveries. The protagonist isn’t a genius or a trained warrior. He’s just an ordinary man who faced dark times and watched his life be consumed by the abyss. But now, he has a chance to change everything. Step by step, he will learn why to fight—and how to survive.