Challenging for E4
Leaders and Professors can issue a challenge every other week for the right to challenge for an E4 spot. These people must fill out a form of why they want to be E4. The Champion and the current E4 will review this forms and pick 6 people to have the right to challenge. The Challengers can challenge at any time before the next 6 people are chosen.
Challengers for E4
These challengers can challenge whoever they want, but they must choose one e4 spot they want to pick and that e4 picks a partner to participate in the challenge with him. Should the challenger beat both e4, then they get the spot, shoud they lose then they have to wait til next time.
Testers
Testers are gonna be decided by the E4 and Champion respectively. Taking in consideration how good they are with multiple types, how active they are and how they behave in the league.
Trainer - Gym Leader
Trainers must test under a Tester or E4 and get a score of 9 / 18 on the weakness test. In order to challenge the gym leader of the desired type, the gym trainer must at least have been in the league for a week, beat the gym leader in a 2 / 3 match format, and score at least 12 / 18 on their weakness test authorized by a tester or higher.
Testing for Frontier
Frontiers must meet two requirements. The first requirement is to reach top 150 in the tier you want to be frontier of. And the second requirements is to have to be highers than 1250 on the ladder. Not all tiers will be elegible for frontier so try to stick with tiers that require skill rather than luck or some obscure abstract knoledge.