Spiritomb resembles a swirling, purple vortex. Green orbs that vary in size circle its face. It has a green, zigzag mouth and two green eyes shaped like half-crescents. Both eyes have spiral-shaped pupils, but often only one is shown which may indicate a 3/4 view of the creature. Spiritomb is attached to a light-brown/gray stone, the Odd Keystone, in which it was trapped after doing bad deeds 500 years ago. It is apparently composed of 108 separate, yet bound-together, malevolent spirits.