Big Monster Fight: Ray's Path to the Ultimate Lifeform

[No system + Pure Arcane + Full-level human]
The fully-leveled human Leo accidentally traveled through the Ultra Universe and became Earth's Leonics Raymon. He had no system, but with his past life experience and extensive knowledge of monsters, he was adept at fighting Leonics, defeating Leonics from all over the planets...
Seven: Quick, Mebius, go to Earth and ask Raymond for help...
Belia: Lei, I leave Geed to you.
Gagra: Lei, I didn't expect to meet you on this planet.
Reberdes: Raymond, it's impossible, I am the number one Leonicus under Belia!
……
One day, when Tartarus attacked, he was about to speak when Leo interrupted him: Let me introduce myself, I am the ultimate life form, known as the "living Rebrand", my name is, Rebrand Raymond!