User blog comment:B214/General Discussion/@comment-1359322-20150428161805/@comment-63.136.112.150-20150430161405

It was not stated by Vali, it was stated that he was one of the Grigori's top fighters, his position was like three if I remember correctly, anyway even if Vali's position was like eight or ten he would still be Maou class, because FAF without a doubt has that much Maou class fighters (anyway please don't argue about how much Maou class fighters the FAF has, please) Also everytime he shows his immense power he does stuff of Maou caliber.

P.S. What the h*** made you think Vali wasn't Maou class?