Use Magic Device (NWN)

A successful Use Magic Device check allows the character to use a magic item as if he had a required class, race or alignment.

Check: The base DC is determined by the value of the item, and modified by the type of emulation the character is attempting. If the character attempts to emulate a specific race, the DC increases by 5; if he attempt to emulate a specific alignment, the DC increases by 10. Emulating a specific class does not modify the base DC.