Battle Frontier (University)

The Battle Frontier at Pokémon University is a feature akin to those at other Pokémon games. Nonetheless, it is led by the strongest Pokémon Trainers from each region who migrated from alternate realities at the Pokéverse, hence those trainers replace the so-called Frontier Brains in each facility. It is located at the same place as Johto Battle Tower/Frontier, and is only accessible after beating the Johto PKMN League.

Facilities

 * Battle Villa (representing Kanto)
 * Battle Tower (representing Johto)
 * Battle Dojo (representing Hoenn)
 * Battle Mound (representing Sinnoh)
 * Battle Circus (representing Unova)
 * Battle Casino (representing Kalos)
 * Battle Safari (representing Alola)

Frontier Avatars
Upon beating the 35-win streak at a Battle Frontier facility, you get to face the Avatar of that region the facility stands for:


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Rivals
The Rivals from the previous Gens also migrated from their respective universes, and face the Trainer when a certain winning streak is accomplished:
 * Rival Gary (acquire a 49-win streak at Battle Tower)
 * Rival Wally (acquire a 49-win streak at Battle Villa)
 * Rival Barry (acquire a 49-win streak at Battle Mound)
 * Rival Cheren (acquire a 49-win streak at Battle Dojo)
 * Rival Bianca (acquire a 49-win streak at Battle Circus)
 * Rival Shauna (acquire a 49-win streak at Battle Casino)
 * Rival Hau (acquire a 49-win streak at Battle Safari)
 * PKMN Legend N (acquire a 70-win streak at Battle Villa)
 * PKMN Legend Hugh (acquire a 70-win streak at Battle Tower)
 * PKMN Legend Gladion (acquire a 70-win streak at Battle Dojo)
 * PKMN Legend Alder (acquire a 70-win streak at Battle Mound)
 * PKMN Legend Steven (acquire a 70-win streak at Battle Casino)
 * PKMN Legend AZ (acquire a 70-win streak at Battle Circus)
 * PKMN Legend Kukui (acquire a 70-win streak at Battle Safari)