Captain America Shield
Who needs super powers when you have a wicked one-of-a-kind shield made of a vibranium based alloy? Cap sure didn't and he went one on one with Iron Man, Doctor Doom and Thanos, just wielding his trusty shield. Of course, you could go the route of other Marvel superheroes and try getting bitten by radioactive spiders to get super powers, but just grabbing this shield seems a lot more reasonable.