Green098 on 08 August 2018
From; https://www.serebii.net/index2.shtml
"The first images from CoroCoro have leaked and have revealed the latest news. As always, do note that translations are preliminary while we work on them. In this, it confirms that Mega Evolutions return in the games once again activating when you have the Key Stone and the Pokémon's associated Mega Stone. The magazine also showcases Vermilion City Gym and showcases that Lt. Surge once again has a Raichu . We'll bring more as it come."
