Alolan Gengar
Dark/Fairy
Infiltrator/Prankster
Black color with white glowing like eyes. Slimmer "squar-ish shape and has a shifting animation like it's Gen II sprite
Now literally a shadow
Desc. has ties to Clefable.
Can learn Nasty Plot

Immune to Dragon/Psychic
Resist Dark/Ghost
Weak to Poison/Steel/Fairy

Make it happen