Harry Potter: Eclipse. - Chapter 23:

Reborn into a failing noble family, Liu Xingchang awakens in a weakened teenage body, surrounded by humiliation and betrayal. Once the revered Sword God of the Northern Polar Heaven Domain, he now faces ridicule from his former lover, Yu Qiuer, who has abandoned him for a rival, and scorn from the very man daring to tread on his legacy.Though his power has diminished to a mere third-grade cultivation, Liu’s indomitable spirit drives him to reclaim his path to supremacy. When he fatally strikes his foe amidst the disbelieving crowd, even the noble Princess Qingyuan is drawn to this fallen “”coward’s”” defiant strength.Can Liu Xingchang resurrect his family’s honor, ascend to the Divine Realm, and turn the tables on those who scorned him?

Talented in Magecraft but useless in physical combat?

Can summon 10,000 Servants but can he defend the rear by himself?

I will say just one line in reply:

“That will not be a problem!”

This is the tale of a young man who obtained an enshrined miracle.

“As long as I have my familiars, I am undefeatable!”

- Description from Novelupdates

In a world where everyone awakens a Trait to start their cultivation, Rhys's was considered a joke: he would never age.In a world that worships raw combat power, a Trait granting eternal youth was worthless. To his powerful family, Rhys was a talentless failure, a stain on their name. With disgust, they cast him out onto the streets, leaving him with nothing.Alone and powerless, Rhys's life was shattered when he was caught in the crossfire of a terrifying battle between two god-like cultivators.Mortally wounded and left to bleed out in an alley, he faced a lonely, pathetic end.But as Rhys's vision faded and his last breath drew near, a new power roared to life within him.[Lifespan Burning System Activated]Suddenly, his useless Trait became Rhys's greatest weapon. His infinite lifespan was now the ultimate fuel source.A divine martial art that takes a genius a hundred years to master?[Consume 100 years of lifespan. Skill comprehended to Maximum Level.]A fatal wound that no healer can mend?[Consume 10 years of lifespan. Body restored to peak condition.]An ancient, unreadable text holding the world's greatest secrets?[Consume 500 years of lifespan. All knowledge unlocked and understood.]From the brink of death, Rhys rises with a burning purpose.The world saw him as trash, but now he will trade his endless years for the strength to stand above all.(Posting this on RR under pen name Unnikuttan)