>>280466690
Pretty good chance that it's the Jormungandr fruit
>Oda loves mythical Zoans and animal motifs
>fits Loki's physical profile (slit eyes, long tongue hanging out of mouth, etc.)
>fits Loki's personality (deceptive loner disliked by everyone)
>Jormungandr is associated with Loki and Ragnarok in Norse mythology
>matches up with the "Serpent of Hell" mentioned a few chapters back
I would be surprised if it were anything else at this point