The Obsidian Watcher is composed of dark, shimmering obsidian shards that shift and reform as it moves. It possesses the ability to phase through solid objects and blend into shadows, making it nearly invisible. Its eyes glow with a faint, eerie light, and it emits a low, resonant hum that can be felt more than heard.

The Obsidian Watcher serves as a covert operative for the Arcane Seekers, infiltrating sacred sites and extracting arcane knowledge. It plays a crucial role in the faction's quest to uncover the Golem's secrets, operating in the shadows to gather information and sabotage rival factions.