Ulysses Klaue, a dangerous arms dealer.
During the Age of Ultron, it was he who sold a large amount of Vibranium to Ultron, allowing Ultron to create the bodies of Ultimate Ultron and Vision with Vibranium, then send Sokovia soaring into the sky.
After Ultron was defeated, countless fragments of Vibranium from both Ultimate Ultron's wreckage and the destroyed Sokovia ended up scattered across the world.
Klaue had always conducted illegal dealings on the black market, reaping huge profits while searching for traces of Vibranium and new buyers.
Why had Klaue possessed so much Vibranium in the first place? Because he had stolen it.
To explain that, they had to talk about Klaue's past. During World War II, his father had been a German colonel.
By chance, his plane was shot down by the Allies and crashed in Wakanda.
He had never seen a city like it before. It was an incredibly advanced futuristic city, technology far ahead of its time.
There, he discovered a miraculous metal—Vibranium. He had originally wanted to take some back for research, but the Wakandans stopped him and drove him out.
Later, when his father returned based on his memories, he could no longer find that hidden city of the future. Wakanda was merely a backward agricultural nation, with no advanced technology to speak of.
Until his death, Klaue's father had worked tirelessly to investigate clues about Wakanda. After his father died, Klaue inherited his ambition. Even as he became an arms dealer, he continued searching for Wakanda's secrets.
European explorers had spent centuries exploring the world in search of the legendary City of Gold. They had assumed it lay in the rainforests of South America, but in reality, it was in Africa.
Beneath Wakanda lay the most precious metal in the world: Vibranium. Through