So I am trying to figure out how would I craft a magic item that would allow me to basically polymorph at will. From what I understand it would be :
Spell Effect:
Use-activated or continuous Polymorph = 4 (spell level) x 7 (caster level) x 2,000gp x 2 (minute /level duration) =
112,000gp .
Now this is my question, the concept of the item would be to basically make it sort of a supernatural ability that would allow the user to Polymorph whenever needed. The goal is to basically have the item with unlimited uses per day and be able to use this as a day long thing by the usage of the Persistent Spell Feat. I would like to be able to use this magic item to polymorph what would seem at will. Very similar to how a Druid can Wildshape so many times per day, but in this case being used by a magic item at virtually unlimited amounts of time. I can imagine that crafting the item with a continuous effect would allow me to turn on and off the item at will correct?
I would really like some insight on this, if possible. Would having the item made with a continuous effect virtually make it have unlimited uses per day? I envisioned the item basically being a sort of necklace or similar item that could have like a command word or turning knob so to say. Once this is done you would be able to polymorph into the desired creature/monster.
I used
http://www.d20srd.org/srd/magicItems/creatingMagicItems.htm as my guide for creating the magic item, but I feel like I left something out
I am wanting to know if I have done the calculations correctly or if I am forgetting something.