pawsplay said:
We're talking about wizards being able to change into things or cancel others' spells. Very basic, archetypal stuff. You can see a polymorph spell in Willow, The Sword in the Stone, Spirited Away, and the Odyssey. Simply removing them from the game is an admission of defeat. Somehow, generations of D&D players have muddled along, but the D&D 4e design team can't figure out how to deal with a fairly straightforward effect.
If you want to call that a sacred cow, well, moo. Wizards should be able to polymorph; any D&D that lacks that is worse than all versions of D&D that don't.
Which is why Razell in
Willow immediately shifted back into her own form. Oh wait, she didn't. Then it must be why Bavmorda turned everyone in the army into a different harmless creature - oh, wait, no, they all became pigs.
It's why Merlin and Mimm in the
Sword in the Stone turned into literally every creature under the sun. Oh wait, they didn't.
The Odyssey? Again, Circe turned them all into swine.
There are countless other examples. Most of them could be solved by tagging various forms to spells of different levels. You shouldn't be able to use a low-mid level spell to turn into any creature. There's a problem when (to use 3e terminology) one of the most powerful tools a 15th-level wizard has is his 4th-level
polymorph spell.
For example, after alter self (which would allow you to assume the appearance of any humanoid, you might gain separate spells which let you assume a series of related forms. For example, you might have a utility spell at, say, 6th level that let you turn into any number of small unobtrusive four-footed animals (cat, fox, raccoon...). Or you might get a combat spell that lets you turn into a predatory animal with hit dice equal to your own.
Most fictional wizards have signature forms. We don't see them turning into any and every creature - they usually have "favorites." It would be perfectly feasible to make wizards pick those forms when they pick their spells. Like the choice of a familiar, it's permanent until changed. So whenever you assume your "bird" form, you're, say, a peregrine falcon. You want to be a sparrow? Sorry, that's a spell.
And truthfully, most wizardly transformations are probably better handled as rituals anyway.