Board Thread:Episode Discussion/@comment-5430952-20200104163125/@comment-4010415-20200106183947

It seems that she stole part of Amber's Maiden powers via ripping part of her soul out of her, hence Ozpin's group telling Pyrrha that the only way they could give her the remainder of the powers was to give her what the powers were attached to - Amber's "Aura", or as Ozpin referred to it, "her life".

When Cinder began stealing the Fall Maiden powers from Amber, the goo and her arm glowed yellow-orange like Amber's Aura color. The same thing happened with the Aura transfer machine - the pipes glowed yellow-orange, and Pyrrha did, as well. Then, in Haven's vault, as Cinder began trying to steal the Spring Maiden powers from Raven, we saw a red glow in her Grimm arm.

As long as Cinder is not attaching the Maiden powers to her own soul, she may be able to store the other powers within her own body by ripping out the Aura that those powers are attached to. The question is if she will be able to use them.