A will-o'-wisp that starves to death might rise as a cold, blue, glowing sphere of spongy wetness—a corpselight. A corpselight instinctively seeks out a host corpse to dwell within, as its physical form quickly deteriorates if not hidden within a dead creature.
5 Desnus, 4721
When exposed to intense sunlight, perhaps enhanced due to the stained glass, the corpselight's weakness to sunlight is heightened to the point of destroying it.
5 Desnus, 4721
Two Corpselights were encountered a shrine to an unknown deity located in the northeastern corner of Gauntlight Ruins.
When a corpselight is reduced to 0 Hit Points while merged with a corpse, it is instead reduced to 1 Hit Point as the corpse collapses to the ground and the corpselight emerges in its wisp form. A corpselight that starts its turn in wisp form must attempt a flat check at the end of its turn; if it fails, it loses 1 Hit Point. A corpselight reduced to 0 Hit Points while in wisp form is destroyed.
Prerequisites The corpselight is in wisp form and is adjacent to a Medium or Small corpse that hasn't been claimed by a corpselight in the past 24 hours
Effect The corpselight merges with the corpse, causes the corpse to Stand, and regains 3d6 Hit Points.