Polymorph Control

Intrinsic Details

Gain Notice:	You know who you should be.
Lose Notice:	You forget who you should be.
Found on Artifacts:	Yes.
Survive Polymorph:	No.
Survive Unpolymorph:	No.
Clear on Death:	No.
Clear on Polymorph:	No.
Maximum Duration:	None.

Intrinsic Purpose

When the avatar is polymorphed by most means (not divine punishment or Bind Soul), the player can choose what monster to turn into. Only monsters you are "familiar with" are available -- that includes those you've killed, or previously been polymorphed into, as well as "yourself", the adventurer. Naturally, that implies you can reject the transformation altogether.

This works for monsters too; Any monster which could evolve wants to be the end of its evolutionary line, others will avoid polymorphing unless in dire straits (down to ~12% of their max HP), in which case they'll accept a random polymorph.

Gaining the Intrinsic

Gained by wearing a Ring of Polymorph Control, or from an artifact.