Why Ozpin needs Ruby Rose
In todays chapter (V6C3) we got sooo much stuff. Mostly Salems motivation and backstory, including the reason she looks like a grimm. During the episode we see the Brothers Grimm multiple times and the places they reside in. The God of destruction resides in the realm of darkness (?). With the pool we see at the beginning of Volume 4. The same pool the creatures of grimm are being created or come out of. Salem jumps into the pool because she thinks it will end her mortality right? But not being able to be killed by the liquid in the pool, she is turned into this human grimm hybrid.
Jinn explains that, because of being unable to kill Salem, the pool turns her in a being that is both immortal and has a desire for pure destruction. One could now speculate that a silver-eyed warrior like Ruby might be able to extinguish the grimm part of Salem and turn her back to normal. Meaning the desire for the destruction is gone.









