So this is a Challenge idea I have.
Ruby is the reincarnation of fem!Revan Ruby/Wiess Revan/ Bastila Shan Yang/Blake
Revan used an ancient force ability to return to the land of the living by passing her skill, power and memories down but not her personality. She did this on Remnant because of the Aura that all of them have and the Semblance that comes with it, giving a vital power boost.
She left a vault that only the next incarnation can open, inside are holocron of the Light, Dark and Gray, HK-47, cryo frozen Mandos. Her cloak, mask and light sabers, along with stuff to make more if needed, finally the Ebony Hawk (More ships can be hidden on or in the moon)
Ruby starts to get the memories during Beacon, (come in at different times eyes cloud and her voice fades to something more)
Salem is Sith and the Grimm are Sith Alchemy creation
WBY is trained up by Ruby/Revan or Mandos
up for grabs