So i read Jericho's post on some topic about hacking and using a team of the same type as a gymleader.. It got me thinking of another idea..A fixed team.. for the entire playthrough.. The basic idea is that you ask people to suggest a team for you and you use only that team from the start.. You can change the moves etc. of the pokemon as much as you like but you cannot change the 6 pokemon.. Evolution is allowed though.. and one HM slave.. 
For example if I were to suggest a team for Cepheus it would be an eeveelution team. 
Jolteon 
Umbreon 
Vaporeon 
Sylveon 
Flareon 
Espeon 
The idea is to start with 6 eevees and the 3 required element stones and as many happiness berries as needed(if someone can give an exact figure it would be appreciated).. that way theres the option of evolving the pokemon whenever required.. 
So any suggestions for this would be nice.. also ways to make the challenge more fun.. 
Maybe something like 
Like no repeating the pokemon 
No legendary/pseudo legendary pokemon 
No starters 
No fully evolved pokemon 
PS: Not sure if this is the right place for this, so if it needs to be moved could somebody put it in the correct place.. thanks..