Obsidian Shadekin, also known as Nightwalkers or Venomous Scholars, are a bipedal draconian species evolving in the southern continents' caverns and ruined cities. Uncommon and secretive, they inhabit fortified subterranean cities. They stand 6 to 7 feet tall, have matte-black scales, and glowing neon green eyes that change brightness with emotion. Capable of using a viridian neurotoxin mist and toxic acid spit, they excel in stealth with abilities like shadow melding and darkvision. Highly intelligent and communal, their society is governed by oligarchic guilds, and they communicate using a unique sign language. Ecologically, they serve as top predators, cultivating their environments sustainably. Their cultural lore includes being mercenaries for surface kingdoms, and they are noted for veneration by scholars as a product of either evolutionary or magical origins.