The Pokémon Company International and Nintendo today revealed new information about the mysterious Pokémon Necrozma, new Z-Moves and more for the upcoming games Pokémon Ultra Sun and Pokémon Ultra Moon. The Rotom Dex also returns and has been powered up. Throughout your adventure, you will grow closer to the Rotom Dex the more you communicate with it, which will cause it to be more helpful.
By deepening the bond with the Rotom Dex throughout the game, you will be able to get special items via the Roto Loto feature. These special items come in different varieties, with some increasing the Exp. Points that you receive for a set period of time, while others may make it easier to catch Pokémon. If you become close enough with the Rotom Dex, it will use a special power for you called Rotom’s Z-Power. This lets you use a second Z-Move in battle, even though normally players can only use one Z-Move per battle.