Irrgaston

Appearance
Irrgaston is a quite large Behemoth with strong broad legs and stout, bulky body structure. The big head is covered in rough brown scales with darker shades around the eyes. The snout is rather short and broad with pointy teeth. Two pulsating dark blue horn-like excrescences grow on the sides of the head. The light brown scales on the back contrast with the spikes with the same pulsating blue like the horns and light blue Stegosaurus-like plates. The shoulders and hips are covered in a blue substance which burns in a light blue color. Irrgaston has dark brown, spiky scales on the back of its front limbs while the scales resemble plates on the back of its hind legs. Hardly developed claws create a round form of the feet. The Behemoth' light brown tail has a bifurcation with blueish scales and spikes.

Habitat and Ecology
Irrgaston is a nomadic monster that appears in many different environments, even in extreme cold and hot ones. The Behemoth has been encountered in the Deserted Island, Flooded Forest, Misty Peaks, Sandy Plains, Volcano, Tundra, Frozen Seaway, Sunken Hollow, Volcanic Hollow, Dunes, Ancestral Steppe, Desert Oasis, Frigid Mere, Taiga, Lava Landscape and Crimson Sands, though it seems it is mysteriously drawn to the Moor.

Even though the range of areas Irrgaston was encountered is wide, it is actually a very rare monster equaling the availability of such a quest a gesture of approval of the guild. The social life of the Behemoth is a mystery as it was never found with another of its kind fueling legends of that it is an immortal monster, hence the title "The Immortle Beast", or that it reproduces without a counterpart by parthenogenesis.

The horns and spikes consist of a weird material with high melting point that doesn't melt even while burning. They actually aren't horns but glands that excrete a tenacious substance which is highly inflammable and burns in a weird light blue flame that deprives heat from its environment. How the flames do that is unknown.

A lot of legends about a sudden temperature fall followed by the appearance of a light blue light promising warmth is proven to describe the hunting strategy of Irrgaston. From the characteristic of the flames absorbing heat the Behemoth lures its prey to its flame into an area with unstable ground in the moor. The targets straying towards the flame get stuck in the moor and are easy prey for the strong beast. Survivors report of a blurred sight and a desire to warm themselves at the fire which suddenly appeared in front of them. Even novice hunters get instructed what to do when such symptoms appear in case of an encounter with the nomadic Behemoth.