ZombieRoboNinja
First Post
Polymorph only allows you to take the form of a beast. This also limits you to CR8 according to kerbarian
He's probably talking about True Polymorph, which is certainly very exploitable but is also a level 9 spell.
Polymorphing an ally is less likely to result in a million concentration saves, and both resilience and war caster are good enough abilities that you'll probably want at least one of them on your spellcaster. But yes, this is a limiting factor. I'm a bit worried about the idea of using the monsters in the MM as a limiting factor, though; all it takes is one cr18 turbo-dinosaur in the Eberron splatbook or whatever and the problem reappears. It's one of few spells in the game that scales up as powerfully as it does without requiring higher spell slots.