One recent finding suggests that yes, male Ralts and Kirlia do provide Mega Energy for both Mega Gardevoir and Mega Gallade, making them versatile companions for walking. Walking with a male ...

As expected with a Community Day event, Ralts will spawn in huge numbers with a high chance for it to appear shiny. There are also several other bonuses and perks, which we’ve listed out below.

It will offer four Sinnoh Stones (which are needed for evolving a male Ralts to Gallade) and an encounter with Ralts. A Continued Timed Research will also be available. Niantic writes ...

then another 100 Ralts Candy to evolve Kirlia into either Gardevoir or Gallade. Unlike Gardevoir, you will only be able to evolve a male Kirlia into a Gallade. Also, to complete this evolution, it ...