is it determined by your level (what you get to poly into) ?
No, you will always polymorph into exactly the same thing no matter your level. Igrovin 00:24, 29 November 2008 (UTC) Triskavanski
No special abilities[]
It seems there is no way to use the special abilities of the forms you chance into, it seems a bit inefficent for a mind flayer to be punching and kicking.