User blog comment:B214/Shin DxD 1 discussion/@comment-79.69.205.92-20180821054243/@comment-82.56.126.47-20180825002143

no vampires has ever been considered to be a satan level creature in DxD. I think the only way for her to power up is to becoming a devil, so maybe she could combine her vampiric power with devil's magic to become stronger.