Sebastian (The Two Masters)
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Sebastian was the leader of the Cult of the Heretic. He had made a deal with the Reborn Master to help regenerate the universe but betrayed him. He swapped the mind of the Master with his earlier self as a way to get the universe to breakdown as a catalyst. He then retreated to the anomaly cage in order to rebuild the universe as healthy. The younger Master killed him using the Tissue Compression Eliminator. (AUDIO: The Two Masters)
