Elite Four (Pokemon Mono and Sepia)

By the time you enter the Verley Department of Battles after you arrive in Verley Hill Boulevard, you'll finally be able to take on the Elite Four. But unlike in previous generations of Pokemon games, you don't challenge the Champion after beating all four Elites right away. Instead, you'll be rewarded with the Zenith Emblem (also said by some as Gym Badge #9), which will let you qualify for the Champion Bowl at Verley Stadium (where you battle three Trainers in the tournament and THEN you fight the Champion afterwards!)

Just like in Generations V, VI (except Omega Ruby and Alpha Sapphire), and VII (except Let's Go PIkachu and Eevee), you can challenge the Elite Four in any order you wish. However, if you lose to at least one Elite, you'll have to start over from your first battle.