Without going too far into her canon (because magical realism makes things convoluted as shit SURPRISE) the basic part is: Venus is a Bad Girl who let the devil into her heart because she was angry at a world that hurt kind people, and now she's the devil too. Like, "the one that rebelled against God" the devil.

So basically, what I'm getting at is that Vanessa's powers might be perfectly suited for interesting CR here. C: