>>45669775Most of the Gen 7 ghosts make sense:
>Alolan Marowak: Transformed by Alola's environment which is harsh on it>Oricorio: Summons the dead with its dancing>Decidueye: explained by >>45669929>Sandygast: Sand castle possessed by the dead>Mimikyu: Horrible creature the sight of which alone kills people, disguises itself as Pikachu to be loved, we don't know what it actually looks like.>Dhelmise: The soul of seaweed that possessed an anchor (actually pretty clever)>Marshadow: Self-explanatory, lives in people's shadows. (Makes for some delightfully creepy imagery)The only Gen 7 ghosts that I think are a bit of a stretch are Lunala/Dawn Wings Necrozma and Blacephalon, but Lunala has the whole stealing light and bringing on darkness motif while Blacephalon loses it head, steals people's life force, and is a weird alien so I guess you can justify them as well.