Polymorph is a standard skill that allow one to transform into a specific monster by using a Polymorph Marble. Polymorph Marbles can be obtained by killing monsters. As any other skill, polymorph can be trained using skill books.
There are 3 polymorph books:
The books can be obtained by killing monsters as a Alternative Drop. To raise your polymorph skill you have to sucessfully read polymorph skill books. You need 20 sucessfull read for M1; 10 for G1; and 10 for P.
|M1-M10||Advanced Polymorph Book|
|G1-G10||Master Polymorph Book|