and now she would be perfect psychological weapon against his greatest enemy.
"be the perfect" you meant?
All sounds fairly good. I wonder why Dracula would bother to go to the dungeon himself instead of having Angela brought to him, but then again he did visit Annette personally. It also did allow you to have Angela kill the nun as well. Though I suppose, there's nothing stopping a demon from dragging the nun along too.
Either way, worked out pretty good.