Stingray

"'Rarararar!!!' Stingray attacking The Power family from the ocean"Stingray, also known as Electra is a Greek assassin who is a member of the golden circle, and the Masters of evil. He was a former criminal/mercenary who was surgically placed into a specialized suit of combat armor. He and Killer Tide were sent after James Power, they were bested by Power Pack, Ultron 5, and Vision.

Later he was sent along with Black moth, and Demise after Harry Osborn as to force Norman Osborn out of the Bio-weapons race. They were defeated by Deadpool and Wolverine.