Little is detailed about Mass Master's life before the zombie plague arrived on Earth-2149, however it can be presumed to have followed much the same path as Mass Master of Earth-616.

Somehow becoming infected, Mass Master, along with the rest of the Power Pack, are seen attacking and trying to eat innocent people, they were about to attack Ash and Dazzler, until a massive explosion caused by Nextwave killed them.[1]


Seemingly those of Jack Power of Earth-616.


  • Costume made of unstable molecules.

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