Nidhogg was born with the capacity for his powers and wavelength to evolve and it was one of the two unique Wavelengths he had found on an artifact excavated from a sealed tomb on the lost land of Rennes-le-Chateau, the second one proved to be even more deadly than the first as it almost cost Nidhogg's life during a training session and was capable of standing up to U-DO's wavelength, the second wavelength found its way into Lok whom became Nidhogg's closest friend and confident. Ω Lok was originally designed as a means of controlling Nidhogg however along with this purpose Yuriev experimented on the idea of introducing something to Lok that would earn him the advantage against U-DO. Dmitri Yuriev was attempting between sixteen and twelve years before the Miltian Conflict an attempt to create the "perfect U.R.T.V Soldiers" to battle U-DO and had great expectations, Nidhogg was his first Prototype however Nidhogg's design specified that he would "taste" Wavelengths and adapt to grow stronger than those Wavelengths over time therefore his powers were hard to chain in and therefore Nidhogg was found hard to control by Yuriev, U.R.T.V. Nidhogg, modernly known as Nidhogg Jotun, was a specialized U.R.T.V designed to be the Vessel of a powerful Wavelength that was capable of tasting and surpassing Wavelengths it fought against. " I swore that I would protect Lok, and you are not going to get in the way of that, too bad for you." ―Nidhogg to Helina.