In BW39, Fennel and Professor Juniper finished creating the Pokémon Restoration Device which is used to revive ancient Pokémon from fossils. Fennel's Musharna was hooked up to the device so its dream energy could be used in the Pokémon restoration process. After receiving a Feather Fossil from Lenora, the device was able to analyze the genetic information from the fossil to revive the ancient bird Pokémon Archeos. The Pokémon Restoration Device was later destroyed by Archeos's tree which resonated along with Archen's cry.
Team Rocket though was able to hack into Fennel's computer network and copy the design data of the Pokémon Restoration Device and sent the information to Doctor Zager.
Link Trade Machine and Tag Battle Against Ash and Cilan
Professor Juniper brought her link trade device to investigate the influence the Electric Stones have on evolutions. She setup the device at her base camp outside the caves. She agreed to trade her Karrablast for Bianca's Shelmet using the machine after they figured out what was causing the electric abnormality that was affecting the machine.
After the battle, Professor Juniper checked both Bianca's Escavalier and her Accelgor's data to notice that their power has increased by a whole lot. She also noted that they fought really well even though their opponent Cilan was Gym Leader.