Thanee
First Post
You should be able to use the full natural weapon routine of the assumed form as given in its monster stat block (with the applied changes for your BAB and magical effects, etc).
Besides heads are not really limbs AFAIK.
Besides, you won't hit anything with those attacks, if you polymorph yourself... of course, polymorphing the fighter is a different case altogether.
We have house ruled Polymorph to be a personal spell (self only) in our games.
That still leaves the familiar as a valid target... I have actually polymorphed my familiar into a hydra once.
Bye
Thanee
Besides heads are not really limbs AFAIK.

Besides, you won't hit anything with those attacks, if you polymorph yourself... of course, polymorphing the fighter is a different case altogether.
We have house ruled Polymorph to be a personal spell (self only) in our games.
That still leaves the familiar as a valid target... I have actually polymorphed my familiar into a hydra once.

Bye
Thanee