A giant red wyrm

Wyrm

Metalic red and shiny

long and slender with a a rectangular head

100 feet long

viper like fangs, 2 sets of malformed wings, interspersed between the wyrm scales, something harder, asteroid bits and possibly drake scales?

Scales and star stuff

20ft

800 tons

Extremely, though Nattgandr tends towards slow and pondering in his aggressivness, like a creature that knows you can't escape

Will most swallow prey whole, if not able to will melt it with the acrid poisonous flame of a wyrm that has grown beyond its normal bounds

Flame, teeth, claws

Beyond fast, moves like a cracking whip

Roars, thundering growls, and light chirping to show affection. And the incessant clicking like a sparkplug firing image to all wyrms, but louder, and the smell of burnt ozone mixes with the noxious fumes of wyrm spittle when he does it

The astral sea

Travels from rock to rock

Only drakes would be capable of competing with a wyrm of this size, and most of the drakes bigger than him are long dead

(Night + Serpent)