Pokémon GO’s Mega Gardevoir has made its debut in the mobile game and, by facing it in Mega Raids and obtaining Mega Energy, players can now Mega Evolve their own copies of the creature. While the Generation 3 Pokémon was introduced with Ruby and Sapphire’s Hoenn region, it only gained a Mega Evolution in Gen 6’s X and Y. It was in that same Gen that Gardevoir left behind its solo Psychic-type and became a dual Psychic- and Fairy-type, which turned it into a particularly strong ally to have in one’s team.

https://screenrant.com/pokemon-mega-gardevoir-raid-best-counters-weakness/