I agree with everyone below. This fanfics is really good to read to pass time. A true douluo fanfics should be like this. Not those absurd ones that had like 500 chapters and had a very slow turtle-like pace. In this one, the author's writing wasn't watery.
I'm currently poison testing this one so here's a temporary 5 star review to attract other poison testers. Need more opinion. I'll edit this when I reach chapter 100 and have enough to say about it
+1 I also envy his ability. This fanfics really showcases the dream of all otakus. It's purely wishfulfillment, yes. But aside from the too large harem and the MC being not as smart as me or some of the readers here, it's still a good fanfics.
(I mean, everyone here should have read tons of fanfics and knew tons of fictional anime, manga, and whatnot. If I were the MC, I would have just copied Subaru's Return by Death which the MC did, but after obtaining it, I would have immediately went to Jojo's Bizarre Adventure and copied Kars' ultimate lifeform physique so id truly be immortal. Then, just copy all stands to have HAXes or even just go and copy Reinhardt before going to stronger worlds like Mondaiji to copy End Emptiness (Wind Of Decadence) and Izayoi. With that amount of power, I'll then just copy the power of the strongest in all fiction like Featherine, OAA, Azathoth, SCPs from SCP verse, etc.
And only then will I act like the MC and act willfully. after all, the MC's actions of acting whatever he wants to do yet not having absolute power is really seeking death even with Return By Death since Re zero verse isn't omnipotent in power scaling. That's why I said the MC is dumb since he keeps acting like he could be powerful whenever he wants to but still doesn't do it. Anyways, theres a difference between having a nuke in hand and not having it so the MC sure is ignorant.)
TL,DR: MC should have copied strongest fictional beings and became omnipotent first before acting whatever he wants to do. Since he acts like someone looking for a beating.