Maybe I can add Battle tiers based on player levels.
This sounds like the best solution to me. Loving all the updates you've done over the past week! The site has changed so much and it's all improvements. Plan on inviting some friends to battle now.

Yes I will have to figure something out tomorrow so that it's fair for all level tiers for users who just begin and haven't collected any Pokemon yet. I do want to keep the game as fair as possible.
Thanks for the comments, I hope to keep expanding and improving.