Master of the World obviously died in Kang Dynasty. It was a great moment and was important to the plot. He was back alive in the last Alpha Flight series without so much as an acknowledgement to it. This is sadly the sort of attitude towards continuity that runs rampant through Marvel for the last decade or so.

Anonymous
I might agree with you were I not relatively certain that we ressurected the Master of the World for that Kang Dynasty appearance as well.