Vritra Shesha (genocidalKiller) is a Jade blooded Troll who has a deep love for the Hemospectrum system. In fact, he is so obsessed with said system that he kills every mutantblood that he comes in contact with. His Lusus is a giant Hydra (as according to the Hydra constellation that Vritra was based upon). His quirk and appearance are both snake-like, with narrow pupils, elongated fangs, long, stringy hair, and stressing the "s" sounds in words. Vritra is, in ancient Indian myth, a giant drought-serpent who swallowed the primordial ocean (which basically means all life before it was created), and Shesha was a giant world-serpent.
Lol, I'll get to doing all of this later. ^^;