Pokémon Season 10 Episode 4

After meeting Dawn and letting her tag along with Ash and Brock, she learns how to battle and capture Pokemon. The gang sees a Buneary and Piplup battles it. The also meet Nando, who is both a Pokemon trainer and a coordinator. Dawn then has a practice battle with him using Budew, the pre-evolved form of Roselia while she uses Piplup.