Dawn has had (in total) 10 pokemon. They are:Piplup, Buneary, Cyndaquil, Togekiss, Pachirisu, Mamoswine, Ambipom, Buizel (traded to Ash), Grimer (trained during camp), Dodrio (used during pokemon triathlon), and Sharpedo (Also used in th pokemon triathlon.)
Dawn is the girl that travels with Ash during the Generation IV anime, so she makes major appearances in all the Generation IV Episodes.
Generation IV GamesEdit
Dawn makes an appearance in Pokemon Diamond and Pokemon Pearl, along with the sequel, Pokemon Platinum. In Pokemon Diamond and Pokemon Pearl, Dawn helped Professor Rowan, when he lost forgot his suitcase at the lake. In Pokemon Platinum, she simply helps Rowan. She is also the female character choice in all 3 games.