DP100: Aiding the Enemy!

Plot
Ash and friends stop at a Pokemon Center, so they can watch Cynthia's champion match on TV. Paul is also there. Ash and Paul quickly get into another argument which results in them having a battle. Paul uses his Honchkrow while Ash uses Turtwig. During the battle, Turtwig evolves into Grotle and it immediately learns that it lost its speed. Grotle must now figure out a way to deal with its loss of speed.