Pokemon Go Gengar Day, Shiny Gastly and Mega Evolution 'Confirmed

Trainers, the Gengar day event is now over and something quite interesting happened. The Gengar day event went live today and for 3 hours Pokemon Go

Pokémon GO's December 2020 Community Day Lasts an Entire Weekend

Trade (GO) - Bulbapedia, the community-driven Pokémon encyclopedia

Gastly Pokemon GO Wiki - GamePress

Verification] Shiny costumed Gengar from MegaGengar timed

Mega Gengar Raid Guide For Pokémon GO Players: January 2023

Party Hat Gengar Raid Guide For Pokémon GO: New Year's 2023

Gengar Pokédex

Pokemon Go Spotlight Hour schedule for December 2023 - Dexerto

Pokémon Go's July Community Day will feature Gastly - Polygon