I'm not sure if I understand all of this:
>Champion Stadium - Johto ChallengeRule & Game hint
1. To unlock this feature, enter all 18 types of sync pairs into the Hall of Fame to complete the medal.
2. Note: Completion rewards for Champion Stadium battles of Hard Lv. 1 difficulty and higher can only be obtained once per week.
3. After entering all 18 types of sync pairs into the Hall of Fame to complete the medal, you can use the reset button to reset your progress and start the challenge again.
4. You must enter the Hall of Fame this week in order to unlock the reset feature.
5. This will reset your progress and allow you to start the challenge again. The points you earned will be reset, so you can aim to score an even higher total.
6. Note: Completion rewards can only be obtained once per week. You cannot obtain rewards for total point reward tiers that you’ve already completed. However, you can obtain rewards for completing higher tiers.
https://pastebin.com/snE9F5WsIs part 5 basically the Battle Villa and Legendary Arena "Reset/Restart" like function?
More of LA, basically you get the badge/rewards with whatever pair you want and then you can reset until you get the points you want? So the rest is there to let you have 1 week of chances to maximize the final point based rewards?