SunWukong - Profile

He could just send in clone that is as powerful as the most powerful person able to enter the given world. Just like FMA world where Edward could keep a large part of his power.

Just to give practical example: Something similar to the Lord's Empire. How The Heaven Awakened World devours other worlds. Also you could make mc's power limited by the size of his world. Bigger world more power.

I think you should introduce other gods like the mc. Ones with higher grade energies too. The mc should level up in energy by making his world devour other gods worlds by letting his world defeat another gods world while he ties down the god of that world in a fight.