You do not have to use ubers but it is suggested that you do.
For gym leaders, select a type: one leader for each type and one multitype leader
Elite Four: select an emote from the emoticon list. Draw inspiration from it and create a team. I want to see creativity. And will be selecting elite 4 based on that creativity. You may not use an emote that anyone else uses. Explain your inspiration
I'm the champion. I will come up with an emote soon.