[366 Days of Monsters] Day 089/366 - Ice Geist (Patreon)

When a group of travelers becomes stranded on a dangerous, snowy pass with no way to escape, sometimes they turn to murder then cannibalism. These evil deeds taint the terrain around it and the souls of the unfortunate become a single powerful, undead entity: an ice geist.

An ice geist appears as a huge, black cloud with screaming humanoid faces boiling to its surface. Supernatural blue light flashes through it like lightning. As in its last moments, the geist still hungers for bloodshed and the flesh of living things. It seeks other creatures who share in the same misfortune as it did. Living creatures killed by an ice geist join its cloud, adding to the fiendish cloud's strength.

Undead Nature. The ice geist does not require air, food, water, or sleep.