Fair, anonymous, so long as you have faith in your team. This is partly an acknowledgement and agreement with Karen’s philosophy that strength is irrelevant and that one should always try to win with their favorites (that is, the team they’ve bonded with the most).
It is also partly a statement that you could practically win an Elite Four challenge with any pokémon so long as it was well-trained. For example, not too long ago, someone took the Kantonian gauntlet using a magikarp … and only a magikarp. Bruno and Lorelei thought it was hilarious, but Lance refused to face the public for nearly a week.
In other words, yes, this is a sound team, anonymous. Good luck!
The Pokédex According to Bill 