For instance if when Rasputin says ‘Natasha, we are going to punish Paul, you and I,’ she advances with a simpering smile one inference can be drawn, but if she shrinks back in obvious horror ...

The horror elements are on point, the comic-book accuracy is there, and Anya Taylor-Joy gets to wield the Soulsword and fight the Demon Bear as Illyana Rasputin, a.k.a. Magik from Marvel Comics.