Yes. You can.
@Shiny Shinx; next time could you ask things like that in the Gen 1-4 Simple Questions, Simple Answers thread? This is for Gen 5 games only.
Ferrothorn is not in the fileld group... ;3
Anyways, thanks for replying
Ok i've been reading around Smogon about moves suited for a Froslass, and it lists Pain Split, but i can't for the life of me see anyway to get this move onto Froslass...What am i missing? I've tried looking through the pedia, but i'm not turning anything up :S
EDIT: never-mind, seems it's a Gen 4 Move Tutor thing.
Does anyone know how to get Pokemon to appear in White Forest? I haven't been able to find any Pokemon...