Pokemon Season 12 - Episode 609 – Bagged Then Tagged!

Ash and Dawn have a tag battle against Lyra and Corey. Ash sends out Monferno and Dawn sends out Cyndaquil. Lyra sends out Chikorita and Corey sends out Totodile. During the battle, Totodile evolves into Croconaw. Ash's Monferno finishes up with Mach Punch and defeats Croconaw and Monferno teams up with Cyndaquil using Flamethrower and Flame Wheel. Ash and Dawn eventually win the battle. Lyra and Corey leave the group and go back to Johto. Corey's father gives Brock the Pokégear as a thanking present to them by showing Lyra and Corey a little of Sinnoh.