Cheren is a side character in Pokemon Myth: Black and White and an occasional travelling companion.
Pokemon[]
Purrloin > Liepard
Pansear > Simisear
Pidove > Tranquill > Unfezant (Male)
Roggenrola > Boldore > Gigalith
Axew > Fraxure > Haxorus
Lillipup > Herdier > Stoutland