The World Serpent from Norse mythology was known to cause tremendous tempests by moving through the ocean depths, much like how Dragon seems capable of summoning powerful winds and rainstorms at will.

In Norse mythology, dragons are seen as embodiments ... The most powerful mythical dragon is Jörmungandr. Known as the world's serpent and the offspring of Loki, Jörmungandr is so big that ...

The mysterious Serpent of Hellfire existed in the First World before the Void Century ... The Serpent could be a colossal snake, similar to Norse mythology's Jormungandr, tied to Elbaf lore.