|Skin Colors||Blue (Kylmyys) or bluish-white (Mykdl'dy) with black markings.|
|Locomotion||Bipedal and Flight|
|Behind the Scenes|
|Universe||Ben 10 Universe|
The Necrofriggian is a humanoid moth with a blue or white exoskeleton and a massive wing span with black markings. This species has the physical capability to fold their wings and antennas into a cloaked appearance, which looks reminiscent to the depictions of phantoms. When they take flight, their wings and antennas unfold, revealing their bodies. Their physical structure has similarities with a well-built human and a skull-like head. In Omniverse, they are more muscular and slightly taller, their body frame being similar to a Neanderthal, while retaining certain design elements.
Necrofriggians from Kylmyys have blue skin and green eyes, Necrofriggians from Mykdl'dy have bluish-white skin and light blue eyes.
Despite the adaptation to cold environments, the Necrofriggans have the curious ability to withstand extreme heat too: during their reproduction cycle, they are able to ingest even hot metal right from a smelting cauldron. They asexually reproduce once every eighty years: the first stage of their reproductive cycle is a sort of hunger state in which they devour anything metal; then, they build a nest with the digested metal in which they lay their eggs. Once the eggs hatch, their offspring fly off into space to feed on solar plasma.
They possess ghost like abilities. They also have the ability to fly with the assistance of their wings, and make very little effort of actually flapping them. They can also become intangible when they want to go through obstacles, enemies or avoid weapon fire. They also breath vapors of cold air to immobilize their opponents or phase through them and freeze internally. Despite their frail appearance they are incredibly strong.
- Necrofriggians can evolve into Evolved Necrofriggians.