Originally Posted by Calypso
Summary from Newtype.
DP133 - Uxie's Shadow!
"At the Pokemon Centre, while the pokemon that were hurt in the full battle are receiving treatment inside, especially in order to heal the severely injured Monferno, Brock goes out in the search for berries."
Guess this confirms Chimchar evolves in the battle against Paul, and that Brock is the one to encounter Uxie.
I knew Monferno was going to evolve in that battle! If you think about it, Dawn, Ash, and Brock will have each seen a different lake legendary. That's pretty cool.