magic i guess, have you ever read the meme novel where the MC is a troll and got reincarnated as an attack helicopter because he used the "I sexually identify as an attack helicopter" joke in a chat and god got mad at him! its so good but the author stopped updating it!
i wanted to but i have to much imagination, cause i want to write one where the MC is a leopard, where they are THE Bismarck, where they are a bomber, where they are a panther or a tiger, where they are a being that can be all of them, be an android/A.I. , they are a xenomorph or where they are a deathclaw, and so so much more things of mass destruction! and at least some of them would be put in a fantasy world to prove that human tech is WAY better then any old boring magic!