S11·E48 Aiding the Enemy!

Ash encounters Paul again, with an argument leading to a one-on-one battle, with Paul choosing his Honchkrow, and Ash choosing Turtwig. However, Turtwig evolves into Grotle, he loses all its agility and loses. At night, Paul's Torterra shows up and comforts Grotle by showing it that speed isn't everything about battles.