Klaue

Ulysses Klaue was a black-market arms dealer gangster and international criminal who had worked alonside N'Jobu in order to expose Wakanda to the rest of the world, with Klaue stealing a stockpile of Vibranium as a result.

Years after Klaue getting away with the Vibranium tech, he had a thirst for these powerful inventions. And he saught out to capture Iron Man for his wonderful tech, he did manage to get the young Tony Stark but he was easily defeated by a repusler blast to the head. Thankfully, he used some of the Vibranium tech to heal him and save his life.

During an encounter with Ultron, Klaue sold all of his Vibranium to the A.I. before losing his arm during an argument.

Remaining bitter against Wakanda, Klaue joined forces with Erik Killmonger, the son of N'Jobu, to steal more Vibranium with Klaue now armed with his new Weaponized Prosthetic Arm. However Klaue was still being hunted down by Black Panther (T'Challa) and all of the Dora Milaje and was eventually captured by Everett Ross after an extensive conflict as they were in South Korea. Having been saved by Killmonger, Klaue was ultimately betrayed and murdered by Killmonger as a means to enter Wakanda and challenge T'Challa for the throne.

Little did Killmonger know, a part of Klaues face was covered in Vibranium which thankfully saved his life. The bullet he took effected his tech placing him into a coma for two years until he awoke in 2017