Worlds Merge(Dropped) Unholy

[Will have the following worlds: Marvel, DC, X-Men, Percy Jackson, Harry Potter, Twilight, The Transformers, The Vampire Diaries, and SCP Universe]

[A/N: Note that I was heavily inspired by ScribbleHub's Dream Engine: Beta Tester... D.C. Comics by Galen, I recommend you check out his masterpiece]

What happens when Jason is forced to reincarnate into a world where the danger lies at every corner? Whether it be Gods, Cosmic Beings, Mutants and Super-powered individuals, Masters of the Mystic Arts, Masters of Chi and Cultivation, world destroyers and builders, what can one man hope to achieve?
Luckily, he has a system to help him through his journey!