Breathquenchers have taken the niche of real-world Pythons to the extreme, being mostly sit and wait predators who subdue prey by constricting them and then eating them whole. They're large enough to take down a small riding dragon.
Breathquenchers cannot technically fly, but they have a stretchy flap of skin along their sides that is usually folded into their body, appearing only as a small crease. They can extend the flat of skin and glide for surprisingly long distances
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Canon design:
Breathquenchers are obviously based on real life pythons, both canonically and in my design. I took inspiration from Morelia species (primarily Green Tree Pythons) for their build.
Their gliding mechanism is also vaguely based on Chrysopelea snakes, which can flatten their bodies and glide up to 100 metres, though obviously taken to the extreme with a dedicated 'wing.'
I can't draw iridescence in any way that looks good, but they are also highly iridescent, making them look like they're every colour of the rainbow rather than just dull red.
