Here are all the rules for battling a gym leader and rules for being a gym leader
Batting a Gym Leader Rules:
1.Lvl.100 battle
2.6v6 battle
3.Single battle
4.No innoppropiate nicknames
5.All items allowwed
6.No hacked pokemon
6.Have good sportmanship
7.When you have beat a gym leader
pm me telling me who you defeated
Being a Gym Leader Rules:
1.No ubers
2.No hacked pokemon
3.No innoppropiate names
4.When beaten tell me or send me a pm
saying yu were defeated by __________
5.All items allowwed
6.Have good sportmanship even if you
beat the challenger or they beat you
Those are the rules for battling a gym leader and being one