Basilisk

A giant of a serpent, though not related to snakes or lizards by any means, the Basilisk is a rarely seen monster more likely found in the neighboring, colder northern lands of Geheen than in Kairegorn to the south. Growing to 2,000 feet in total length, this eight eyed reptile is armed with acidic venom, enormous hinged fangs, a parrot like beak as a set of inner jaws, and loose scales that can be used in a similar manner to a rattlesnake's tail, as a warning against enemies.