Legend tells of a wise Migoi who saved Tenzin Norgay's great-grandfather during a devastating blizzard, forming an ancestral pact to protect the mountain's secrets. For generations, this Migoi has watched over the Himalayan peaks, passing down knowledge of hidden paths and ancient rituals to worthy guardians who prove their commitment to preserving rather than exploiting the Yeti's wisdom.

The Migoi Sentinel possesses the unique ability to become completely invisible when still, and its backward-facing feet leave misleading tracks in the snow that confuse and misdirect intruders. It communicates through subtle shifts in wind patterns and snowfall, allowing it to warn the Whiteout Guardians of approaching threats without revealing itself. The Sentinel can withstand the harshest mountain conditions without shelter, existing in harmony with the deadly environment that would claim most human lives within hours.

As the primary scout for the Whiteout Guardians, the Migoi Sentinel patrols the outer boundaries of the Yeti's domain, creating elaborate false trails to lead the Frostbite Seekers astray while guiding true believers safely through treacherous passes. It serves as Tenzin Norgay's spiritual advisor, revealing ancient mountain wisdom only to those who approach with reverence rather than conquest in their hearts.