Jörmungandr (Old Norse: Jǫrmungandr, meaning "huge monster"), also known as the Midgard Serpent (Old Norse: Miðgarðsormr) or World Serpent, is a sea serpent, the middle child of the giantess Angrboða and Loki. According to the Prose Edda, Odin took Loki's three children by Angrboða—the wolf Fenrir, Hel, and Jörmungandr—and tossed Jörmungandr into the great ocean that encircles Midgard. The serpent grew so large that it was able to surround the earth and grasp its own tail. As a result, it received the name of the Midgard Serpent or World Serpent. When it releases its tail, Ragnarök will begin. Jörmungandr's arch-enemy is the thunder-god, Thor.
Powers and Stats
Origin: Norse Mythology
Age: Several thousands to a few millions of years old
Classfication: Monster, giant snake, world serpent, Son of Loki, archnemesis of Thor
Powers and Abilities: Superhuman strength, speed, agility, reflexes, endurance, durability,can negate durability with venom, sharp fangs, amphibious, can make tsunamis and earthquakes with his body
Speed: Hypersonic on water (Can cover hundreds of kilometers in a few minutes), Massively Hypersonic+ reactions
Lifting Strength: At least Class P
Striking Strength: Moon Class due to its sheer size
Stamina: Virtually unlimited
Range: Planetary, as it is half the size of Earth.
Standard Equipment: Multiple tentacles, sharp fangs, and venom