The Prime Sentinels are technically cyborgs, but yeah. And Spider-Man has the Living Brain and the Spider-Slayers as robotic enemies, if we can keep...
Presumably in jail as of the end of Hallows' Eve's mini, but she did seem pretty confident that she'd buy her way out, so if she shows up again . . ....
"The Enigma Force is not a tool to be manipulated by mortals. The Enigma Force comes to those it deems worthy. What temerity, what arrogance, makes you think you are worthy? Have you not all made mistakes? Unforgiveable ones?" - Captain Universe
"Call me an Avenging Angel, Baron, come to safeguard Earth...call me CAPTAIN UNIVERSE!" - Ray Coffin
"You're my heart, Mary Jane Watson...you're my jackpot." - Peter Parker