Not all of the D-list villains assassinated by Scourge were lucky enough to have their final moments of ignominy illustrated for the approval of bloodthirsty fanboys. Some of those perfidious unfortunates had to make do with a Scourge "honorable mention." Getting name-dropped by Scourge wasn't exactly on par with a mention on "Page 6." It's more like working your ass off on a diorama of "Lab Coats Through the Ages" for the Lunar Elementary Science Fair and receiving a Certificate of Participation, while a lazy dim-bulb like Weight Wizard submits a stalk of celery with freaking googly eyes glued onto it and walks away with a goddamn red ribbon and sure, later you hold him down and threaten to force-feed him googly eyes until he gives you his ribbon but somehow it just makes you feel all hollow inside... um, but I digress.
The Wrench was one of those off-panel victims. "Who?!" you ask. Exactly. The Wrench, a.k.a. Kurt Klemmer, wasn't exactly what you'd call a "supervillain." He was just a big crazy oaf in overalls who clubbed folks to death with a big wrench. Oh, and he also carried a gun. He didn't have a costume and to be honest, he was never even called the Wrench in the one comic in which he appeared ("Omega the Unknown" #6). That comic's cover has one of those old-timey bombastic word balloons where a Hulk-sized Klemmer boasts about "THE POWER OF THE WRENCH" while he belabors Omega about the noggin with a perfectly humongous wrench that leaves a crackling energy trail. (You could always rely on a Gil Kane cover for a spicy, over-the-top rendition of a book's actual contents!) So it's unclear whether that pimped-out version of Klemmer was referring to himself in the third person and by a code name at that -- admittedly, normal villain behavior in the world of 1970's Marvel -- or if he was just really proud of that wrench!
I think it's clear that Omega's writers, Steve Gerber and (uncredited) Mary Skrenes, never intended for Kurt Klemmer to be an out-and-out "supervillain." Which is totally cool. But could he have worked as one? I think so. He had an interesting hook, in that he was a handyman who was obsessed with "fixing" his fellow human beings. Which involved bludgeoning them to death with a wrench, but hey, it's a start. He was a big, sturdy guy, so at normal strength with an ordinary wrench for a weapon he'd make a fine adversary for one of the Marvel heroes who fight street-level crime, like Daredevil or Power Man. Or a writer could go the "Absorbing Man" route with him and have some cosmic being magic-up his wrench so he could battle Thor and Iron Man. Maybe he could join the Wrecking Crew! And maybe he could dress like so:
Previous "Rescue Me" challenges: