sentences:  As the Blackbird enters Valhalla's defense perimeter, Count Nefaria disables it with the defense systems, sending the X-Men into a fatal fall.There are no issues of "Uncanny X-Men" #94 that rate higher than a 9.8 on the Comic Guaranty LLC grading scale.As of June 1, 2013 there were 18 copies that had been graded at 9.8.