User blog comment:B214/Shin DxD 1 discussion/@comment-31137559-20180826175212/@comment-87.15.180.245-20180829210910

Yes but remember that Issei had the power of a Dragon in his Sacred Gear and so it had sense for him to train with a dragon (if I recall the first time Issei fought Vali he was able to reach BB not just because of the bracelet Azazel gave him but also to the fact that his opponent had the power of a dragon, so his SG responded better with a dragon before him). I think that she could be helped by Sitri clan to start controlling her power, if I recall Sitris are the expert of water manipulation.