There are some enemies in Wintertusk that would make great polymorphs.
I'd love to see the big blue frost trolls become an ice polymorph.
What enemies do you think would make good polys and what school should they be for?
I'd like to see "Professor Polymorphs": specialty polymorphs in which you learn from your own professors which give super-duper spells and 12 rounds instead of 6 to cast them!