The plan was thwarted by the super-hero known as Ulysses Bloodstone who short-circuited the villain's electrical weapons, badly injuring him.
Feeling sorry for Killer Shrike's condition, Bloodstone's agents sent the villain to a New York hospital, where he lay comatose for several weeks.
[10] Killer Shrike was later hired by Surge and battled the She-Hulk alongside Grey Gargoyle and Dragon Man, but was defeated.
Killer Shrike was briefly a member of the Cardinal's team of flying super villains known as Air Force.
[volume & issue needed] Killer Shrike later appeared as a member of the Shadow Council's Masters of Evil.
[18] Killer Shrike was among the villains to join Swarm's Sinister Six when they attacked Spider-Man and the students of the Jean Grey School for Higher Learning.
[24] Following Spider-Man's victory over the Goblin King, Killer Shrike was seen with the former Hobgoblin henchmen at the Bar with No Name where they encounter Electro.
[28] Extensive conditioning and surgery by Brand Corporation scientists enhanced Simon Maddicks's strength and other physical abilities.
He is capable of flight by means of a surgically implanted anti-gravity generator at the base of his spine, activated by a neural link.
Besides that, he has extensive training and experience in hand-to-hand combat and martial arts, and proficiency with hand weapons including guns and knives.
His major weapons system is the twin power-blasters worn on his wrists, with titanium talons capable of slashing flesh, wood, cinderblock, and light metals, and of discharging high-frequency electrical bolts.
[29] The Simon Maddicks incarnation of Killer Shrike appears in Iron Man: Armored Adventures, voiced by Ty Olsson.