Board Thread:Speculation House/@comment-26869193-20180310192420/@comment-26018514-20180413172536

Jaden Marks wrote: ...As for the Maiden powers, it's implied that a maiden can receive another maiden's power...

It's implied Cinder thinks she can steal them, not that they can naturally occur in one being, nor that even Salem's method for siphoning powers was intended to be able to do so. Salem intimated that Cinder should use the maiden, not steal the powers. This indicates even she doesn't think it will work for certain.