New Info?] Looks like Party Hat Gengar will be able to Mega Evolve

Holo Mega Gengar and Mimikyu/ Custom Holographic Pokémon Card

In Honor of the New Un-evolvable Costume Pokemons, Here's the Perfect Party Hat Eevee I Caught : r/pokemongo

Pokémon Go Mega Evolution update and new bonuses, how to Mega Evolve and all Mega Evolutions list

Will she permanently lose her flowers if I mega evolve her? : r/pokemongo

Do they lose their costumes if mega evolved? Gengar might just be worth it… : r/pokemongo

Party Hat Gengar Raid Guide For Pokémon GO Players: January 2022

Shiny Gengar ( Party Hat ) Pokemon Trade Go

Pokémon Go Shiny Party hat Gengar~weather boosted~! reliable service~~

Pokémon Go Mega Banette counters, weaknesses and moveset explained

Party hat Gengar and Nidorino Raid Day — Steemit

Pokémon Go Mega Evolution update and new bonuses, how to Mega Evolve and all Mega Evolutions list

Gengar, Pokémon GO Wiki

First event gengar was shiny! Kinda weird the mega evolution's illustration doesn't change tho.. : r/pokemongo

Will this be able to mega evolved since it can evolve to slowbro? : r/TheSilphRoad