The Master Summoner is a cosmic entity of unknown origin who attempted to destroy the Earth by duping the Justice Society of America into using their powers in such a way as to upset a delicate cosmic balance. Doctor Fate was eventually able to determine that in order to defeat him, the JSA needed to do absolutely nothing until the conjunction of planets integral to the Summoner's scheme had passed, and the Master summoner departed, swearing that he would one day have his revenge.

  • This version of Master Summoner (Earth-Two), including all history and corresponding appearances, was erased from existence following the collapse of the original Multiverse in the 1985–86 Crisis on Infinite Earths limited series. Even though versions of the character may have since appeared, this information does not apply to those versions.



Injustice Society 0001
Justice Society Villain(s)
DC Rebirth Logo

This character, team or organization is or was primarily an enemy of the Justice Society, in any of its various incarnations. This template will categorize articles that include it into the "Justice Society Villains" category.