twilight shape
Class: innate : 4
Syntax: cast CLASS twilight shape on bat|wolf

With this spell a vampire can change her body into a bat or a wolf. Bat is a tiny flying creature incapable of combat, while wolf form provides a vampire with the same strenghts as druidic wolf form. In addition, bat form can use <wing> command.

Vampire lord gains two additional form: vampire and varghulf.

N.B. You can set alternative description, speech string and adjective for these forms.