American Comics: Starting After Surviving on the Sky Island

(Worlds connected so far: Minecraft + Marvel Cinematic Universe + Warhammer 40K + Harry Potter...)

A failed author was tossed by the Minecraft System into a Minecraft skyblock survival world. After decades, perhaps even a century, he finally managed to kill the Ender Dragon, which sent him to the Overworld.

But the Ender Dragon cursed him before it died, granting him a second System. The two Systems kept clashing until the failed author persuaded them to make peace, and they merged into one.

And so, the owner of a general store whose name would resound throughout the heavens was born.