Challenger and gym leader rules.

The rules for challengers battling gyms are
1. No hacked pokemon. (ex. Weavile with wonderguard)
2. Every battle will be 6 vs. 6 lv 100 preset.
3. No uber pokemon.(legendaries)
4. No 2 same pokemon can be on 1 team.

Same rules apply for gym leaders. With one addition.
1. Gym leaders must have at least 4 pokemon on their team that have the same type as their gym. Duel types count.

So... I'm kind of new... What do these gym leaders do? Fight other players with a single type, obviously, but... What happens when they lose? The player gets the prize, and...? Do the gym leaders have to resign? Eheheh... e_e