At 20th level, a shaitan binder's eidolon gains the ability to grant its summoner's wishes. Once per day, the eidolon can cast limited wish as a spell-like ability. The eidolon's caster level is equal to its level. The wish must be spoken aloud by the shaitan binder, beginning with the words "I wish," and cannot duplicate a wish the eidolon has granted within the past 24 hours. If the eidolon uses this ability to duplicate a spell with a costly material component, the shaitan binder must provide that component. This ability replaces twin eidolon.