Basilisk

Said to be the king of snakes, the basilisk wields a petrifying gaze and a lethal poison. Death and decay follow in their wake. Their breath is so pungent it withers the surrounding plant life, marking the entrance to their dens with a foul odor and dead foliage. Extremely territorial to others of their species, basilisks live alone in caves and crevices across Southern Europe. They tolerate many smaller snakes of varying species who gather in their den to feed off their leftovers. However, should the basilisks' hunting grounds grow scarce, their guests become their next meal. Despite their noxious presence, the snakes are striking creatures, boasting an iridescent green pattern crowning their head and translucent green neck flaps that extend when the animal is excited or agitated. While encountering a basilisk is rare, it is fatal.