You gain skill with using a supernatural ability of an assumed form.
Prerequisites: Wis 17, Assume Supernatural Ability, ability to assume a new form magically.
Benefit: This feat functions like Assume Supernatural Ability, except that you do not take the −2 penalty on all attack rolls, saves, skill checks, and ability checks when using it.
Special: You can take this feat multiple times, but you cannot apply it more than once to the same special ability. Each time you take this feat, it applies to a different special ability.
Source: Savage Species, page 35.