User blog comment:Omega natsu2/Chapter 375: The Supernatural, Predictions./@comment-24066070-20140313075229/@comment-4829046-20140313110347

I got the idea from this that maybe Ivan was so useless in offensive power was due to his offensive "soul" being absorbed by Fran as some kind of feature that maybe related to them being able to stay as an independent dark guild and also how they got the Demon Obra.