It started as just a little idea about Celebi and a human becoming good friends. Much like a Pokemon, it evolved. I'll stop with the bad metaphors now.

Personally I feel that the battle sequence could've been written better, especially since I had to keep track of 6 active Pokemon at once, and I quickly reduce that, shortening the battle. Other than that, I think this turned out nicely. I also resisted the urge to make the shrine a TARDIS, but then, that would be obvious if I did.