This version repeatedly plagues Superman for years until, during an encounter wherein multiple Grundys are spawned, Superman and the Swamp Thing both encounter the clones. Soon, Superman obtains a compound from S.T.A.R. Labs which causes the Grundys to become inert, in effect killing the seemingly unkillable man-thing. Swamp Thing attempts to cry out for Superman to stop, as he believes Grundy to meet the definition of life, but Swamp Thing is unable to express this, due to physical difficulty in speaking.