>>29808623It's what it says on the tin. You can fight battles to defend your Champion title.
>>29808637We don't know specifically how to trigger it yet, but in the post-game you can go through a wormhole where you caught the box legendary and go to the other game's world. Meaning, you can have either the Sun or Moon time clock on either game in the post-game. It should allow you to evolve into Sun Dog in Moon, but people are still testing shit.