Marvel: The God of Mutants

After transmigrating into the Marvel Universe, he awakens a Template System and becomes a mutant possessing the superpower Plunder.

[Plunder: Allows the user to steal the superpowers of those he personally kills. This ability can evolve.]

…

Sephiroth Template: Octaslash, Heartless Angel, Fate Proclamation, One-Winged Angel Form…

Vergil Template: Sin Devil Trigger, Judgment Cut, Judgment Cut End…

Kaido Template: Thunder Bagua, Flaming Drum Dragon…

Superboy-Prime Template: Heat Vision, Freeze Breath, Super Strength, Super Physique…

Darkseid Template: Omega Beams, Anti-Life Equation…

…

Magneto:
“I can only manipulate magnetic fields. He can manipulate not only magnetism, but also gravity, subatomic particles, molecules, space, and even time.”

Professor X:
“His existence didn’t merely change humanity’s perception of mutants. He also showed the world just how terrifying and dangerous mutants can truly be.”

Odin:
“He is the strongest mutant I have ever seen!”