Since I'm a fan of Steven universe....here's a little back story on my SU oc moonstone....(there's so many moonstone–)

Oc used

Moonstone,another version of my main Melody
Cerussite, based on Chris_Isnt_Here oc....which I hope she doesn't mind–

It's like a little gift for her since it's the first time I made a oc for someone

Moonstone is a Fortune teller for white diamond court, she represent luck as well and her main power is an ability to change relationship between each gems which effects their mood

But this type of power couldn't be overused or her physical form would crack until she eventually gets shattered

As for Cerussite I would let Chris decide her role her power before filling it in -v-