Incorporeal creatures are creatures the primarily reside on the ethereal plane making them hard to interact with for anyone on the material plane.
“The specter of a horrifying crone hovers several feet off the ground, her semitransparent body...Witchfire
“A ghost is the spirit of a mortal creature which for whatever reason cannot, or will not leave...Ghost
“Danse macabres are morbid specters of the final fate which awaits every mortal. They appear as...Danse macabre
“ Wraith (Creature) Type Undead (incorporeal) CR 5 Environment Any Alignment LG NG CG LN N CN LE...Wraith