The Eclipsed Sentinel possesses the ability to phase between realms, making it nearly impossible to detect. It has a semi-corporeal form that allows it to interact with both the physical and spiritual worlds. Its presence is often accompanied by a chilling aura and a faint, otherworldly glow. The Sentinel can also manipulate shadows, using them to conceal or reveal cryptid activities as it sees fit.

The Eclipsed Sentinel serves as the ultimate guardian of cryptid lore, ensuring that the stories and secrets of cryptids are preserved across all regions and cultures. It influences events by subtly guiding cryptid encounters and maintaining the delicate balance between the cryptid world and human perception.