im thinking
1. you need at least 3 badges to enter
2. for this 1 its will be a 4 or 8 person tourny depending on how many wanna do you it (who also have 3 badges)
3.this tourny you would use a theme (and im thinking that even the trainers will need ot use a theme for the tourny)
4. we would need a prize (would u be willing to give up 1 poke) if not i have 6 dig/dragon rush aarons i just breed that i wouldnt care ot give
5. they would also get a little badge/symbol to have on there trainer card