Ok here are the gym n e4 rules.
GYM: 1. One Uber allowed 2. No same pokemon 3. No same items 4. Only two super effective Pokemon allowed 5.Only one try a day
E4: 1. Uber allowed 2. No same Pokemon 3. No same items 4. Must use same team of pokemon when challenging the e4. 5. If you lose you must start over the e4, you may switch teams if you lose.