Living Laser, Power Man, the Man-Ape and the Swordsman. He first sent the Man-Ape against them, who captured Black Panther. He allowed Black Panther to escape so that the Avengers could be contacted so they would be lured to the Lethal Legion members' location, before capturing Black Panther again. He captured nearly all of them, placing them in an hourglass filled with a deadly gas, and sent Power Man after the Vision who defeated Power Man by disguising himself as Power Man and Power Man as himself. The Lethal Legion was defeated when Grim Reaper found himself unable to strike down Vision, having discovered that the syntheizoid possessed his brother's brainwave patterns. He released 'Vision' by breaking the hourglass, meaning the Avengers were freed and defeated the Lethal Legion. The Grim Reaper later allied with the Space Phantom and HYDRA. He planned to transfer the Vision's mind to Wonder Man's body, thus "resurrecting" his brother. He battled the Avengers again and was defeated. Behind the scenes, the Grim Reaper later had Wonder Man resurrected as a zombie by the Black Talon to attack the Avengers. Wonder Man was restored to true life as a result. Grim Reaper then captured the Avengers, and staged a trial to determine whether the Vision or Wonder Man was his true brother. He was defeated by Wonder Man. Later, the Grim Reaper attempted to kill both the Vision and Wonder Man, but was defeated by Vision. Later still, the Grim Reaper with Ultron, Nekra and other allies, captured the Avengers. Grim Reaper attempted a recreation of "Simon Williams" as a zombie. He was pursued by the Vision and Wonder Man in a cave, and died in a fall from the cave ledge. Grim Reaper was then resurrected by Nekra as a zombie, but he believed himself to be alive. The zombie battled Wonder Man and Magneto, but when he realized he was actually dead, he "died" again as a result. Much later, the Grim Reaper was resurrected by the time travelling Immortus as a member of his Legion of the Unliving. Grim Reaper battled Wonder Man, and "died" again of a broken neck. He was then resurrected by Nekra as a zombie again, this time under the condition that he absorb a human life-force every 24 hours. He killed Nekra as his first victim, and then battled Wonder Man before escaping. He battled Wonder Man