Vegeta is the deuteragonist of the Dragon Ball franchise. He starts as the main antagonist of the Saiyan Saga, but as the story progresses he becomes one of the heroes of the Z Warriors. He is the prince of the warrior race known as the Saiyans. He also has an on & off rivalry with Goku, but they are usually on good terms.
What the title says, my friends! Go right ahead and make your own team, whether or not it's your own Avengers or your own Legion of Doom, go ahead and assemble your favorite characters in your own team or teams!
