It's the sort of power that only high enough Imms have that aren't going to go around telling people. Amusingly, though, I did a utility/utility shapeshifter that while in the description room an Immortal randomly commented I had an "interesting" set of forms. I power levelled as quick as I could to get baboon, orangutan, and howler monkey. I think I managed about 2wks before I couldn't take it any more.