^ it was a future version of Jamie, so all Jamie's feats apply to him. But he managed to become God on an omniversal scale via the omniversal tower in the end (uncanny x force #23):
http://i.imgur.com/C09uQMP.jpg
http://i.imgur.com/54LJl4q.jpg
He became "omni God". He got defeated because present Jamie got killed (killing the future version of the process which was the goat)
At that point he should handle MJJ, imo. If not then it could go either way.