Double Battle Mode is one of four different Battle Formats found at the Trainer Tower. As the name suggests, players will challenge the trainers standing in their way to the top floor of Trainer Tower in Double Battles. Like all of the other Battle Formats at Trainer Tower, you will need to defeat one trainer on each floor in Double Battle Mode, with there being eight floors in all. Each opposing trainer will have Pokemon at the same level of the highest leveled Pokemon in your Party. Defeat all eight trainers in Double Battle Mode to receive the Dragon Scale, an Evolutionary Item that can be held by Seadra in order to Evolve into Kingdra when traded.
Double Battle Mode Pokemon Trainers
Twins Jen & Kira: Espeon, Jolteon
Crush Kin Jo & Haley: Houndoom, Alakazam
Crush Kin & Rene: Machamp, Golem
Cool Couple Isac & Mag: Crobat, Piloswine
Cool Couple Jos Anne: Arcanine, Blissey
Young Couple Emy & Alex: Furrett, Ursaring
Sis & Bro Axe & Ren: Dragonair, Lanturn
Cool Couple Geb & Megan: Rhydon, Gyarados