A group of ninja-like Shadow spirit warriors
Varies
These masters in question are nine Oni generals, commanded by Tarakudo, the King of the Shadowkhan. The generals were imprisoned within nine Oni Masks, and can only be revived by someone wearing the mask. Shendu also summoned Shadowkhan to do his work, by locking the Oni mask which controlled the Ninja Khan in a magical chest. They follow their ruler without question, such as when Jade gained temporary control over them they would do her nails, feed her breakfast, dress her, and even were even about to get revenge on Jade's classmates before she told them not to.