Casting Time 1 standard action
Components V, S, M (a pinch of green mold)
You cause all undead in the area of effect of 4 HD or less to decay into piles of harmless green mold unless they succeed at a Fortitude save. Each undead gains a bonus or penalty on this saving throw based on the brightest level of illumination in its space: supernatural darkness (+3), darkness (+2), dim light (+1), normal light (+0), bright light (–1).
Sandy Petersen’s Cthulhu Mythos, © 2017, Petersen Games; Authors: Sandy Petersen, Arthur Petersen, Ian Starcher.