This article contains old or outdated information, or has not been updated in a while. Please check the content of this article and update it as required. Reason: confirmation of USUM abilities.
Unlike in previous games, Pokémon Sun and Moon features the ability for the player to defend their title as Champion upon defeating the Elite Four for the second and subsequent times, instead of battling the former Champion over and over again. Upon sitting on the Champion's throne, the challenger the player faces is selected at random from the following Trainers.
The first Title Defense battle after the initial Champion battle is always against Hau. On subsequent battles, on the first of the month in Pokémon Sun and Moon, Faba always appears; in Pokémon Ultra Sun and Ultra Moon, Lusamine appears instead. Additionally, Gladion will only appear in Ultra Sun and Ultra Moon on rare occasions one month after the player defeats Necrozma.