User blog comment:BMHKain/Speculation for BMHKain's Season II OMMs.../@comment-25968390-20150813232801/@comment-25968390-20150817182714

The character in question can potentially take out Madotsuki if she wished. She has more combat experience, and her darkness would deal a lot of damage albeit its limits. I think the only way for Issac to win is simply use his abilities right, and given he's been through worse than the character in question, I think it might be a close call. But it's going to be a while before the fated battle happens...