Ben 21 : Fusion aliens in fused multiverse ( marvel/dc/invincible/ben)

MC gets reincarnated into the body of 9y/o Benjamin Tennyson. While stepping out of his house after composing himself he gets hit on the head with a newspaper . " Might as well see what's up with this world I guess ... WTF!!! Anthony 'Tony' Stark of Stark enterprises kidnapped in the middle east, Infamous Gotham vigilante Batman on the trail. Omniman' declaration: I will make Chicago safe from all superthreats. Sport's scandal Yamcha considered to be the best baseball player in the world has a hidden history of super martial arts. Where TF am I !