Níðhöggr or Nidhogg (Malice Striker) is a powerful dragonthat is found in Norse Mythology. The big mighty dragon lives in the roots of the great ash tree Yggdrasil which holds the 9 realms of Norse cosmology together. Níðhöggr also chews on the roots of the tree for all eternity with hopes to damage it and topple it. He has a rivalry with an unnamed eagle that lives at the top of the World Tree and the two exchange harsh words and messages through Ratatöskr, the giant mischievous squirrel, that bears the words between the two. It is said that the Níðhöggr will go off to Ragnarok, the Norse Judgement day to aid the giants in their battle against the gods.
Níðhöggr is quite large in size, large enough to definitely make serious damage to a tree the size of the universe. He has large dorsal spines on his back and curiously has no wings or even arms or rather he has legs or arms that function as both their primary function and the other. He has two large horns and thick body armor reminiscent of most dragons. Contrary to usual belief. He is not actually a ”dragon” in the norse sense. In norse mythology. He serves as a ”devourer” or ”eater”. In norse mythology. These kind of beings were called jotuns or giants. In this sense Níðhöggr is actually a giant in that he is large and is a consumer. Níðhöggr constantly chews on Yggdrasil the world tree at the center of the norse cosmology. Níðhöggr has never left the roots of Yggdrasil. Presumably being born there and living there. His origins are unknown from there. He is in and around roots a lot maybe saying that he is most at home there for whatever reason