One Piece chapter 1135 does this again via the appearance of a giant serpent on Jinbe’s Elbaphian outfit, which could be setting up an introduction to the series’ version of Jormungandr.

A popular fan theory on Reddit suggests that Mosa is an ancient fishman inspired by Jormungandr and will help Loki bring about Ragnarök. In Norse mythology, Jormungandr, the world serpent ...