Baba Yaga, Lilith, Masan, afreet, apparition, appearance, astral, astral spirit, banshee, barghest, cacodemon, control, daeva, demon, departed spirit, devil, disembodied spirit, duppy, eidolon, evil genius, evil spirit, fiend, fiend from hell, form, genie, genius, ghost, ghoul, grateful dead, guide, gyre, hant, haunt, hellion, idolum, immateriality, incorporeal, incorporeal being, incorporeity, incubus, jinni, jinniyeh, lamia, larva, lemures, manes, materialization, oni, phantasm, phantasma, phantom, poltergeist, presence, rakshasa, revenant, satan, shade, shadow, shape, shedu, shrouded spirit, specter, spectral ghost, spirit, spook, sprite, succubus, the undead, theophany, unsubstantiality, vampire, vision, walking dead man, wandering soul, wraith, yogini, zombie

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