New Info - Mega Gengar and Costume Gengar added : r/TheSilphRoad

Halloween costume infographic update! : r/TheSilphRoad

Pokemon Go MEGA/Raid Invite Halloween Gengar Win Guaranteed (100% safe)

Gengar, Pokémon GO Wiki

New Info - Asset Update - Spooky Clothes and Poses have been pushed : r/ TheSilphRoad

Gengars spawn on daily incense have its new costume! : r/TheSilphRoad

The official halloween plushies for this year have been revealed, expect to see one or more of these as costumes in game. : r/TheSilphRoad

100%, shiny, double moved, legacy, best buddy Gengar : r/pokemongobrag

In love with shiny Mega Gengar! : r/pokemongobrag

Visual bug] Pokedex-Gastly line shows costume gengar if navigated through Gengar or Mega Gengar, but shows regular sprite if navigated through Gastly or Haunter : r/TheSilphRoad