Let's do this. First, you roll.

1 or 2, you're a Rival,
3 or 4, you're a Gym Leader,
5 or 6, you're an Elite Four,
7 or 8, you're a Champion,
9 or 0, you're a villainous team leader.
If you get dubs, you can choose whatever you want.

> If you're a Rival or Champion, how often do you encounter the protagonist, and what are your teams?
> If you're a Gym Leader or Elite Four, when are you encountered, and what does your Gym / room look like? What are your teams and type specialty?
> If you're a villainous team leader, when are you encountered, what's your team's goal, if any Legendaries are involved in your story, which ones and what are their role? What are your teams?

Optionally, what is your theme song, either your encounter or battle theme?