Lord Yamcha is Yamcha the desert bandit that menages to kill Goku in theire second round using the "training" with Evil Tullece
The story
After theire first battle with Goku, Yamcha was pissed but he later met a mysteous man looking like Goku! He told him that his brother wants him to be evil and promised to help him, Yamcha agreeded and Evil Tullece said to Yamcha to attack him, he wont attack, after the "battle", Yamcha was powerful with a power level of 750.000. Later the next day he challenged Goku to a duel and he brutally killed him, reducing him to bones, he later kissed Bulma and married her. Years later a stranger alien comes looking for "Kakarotto", Yamcha easily owned him but spared his life, he tells him of Freeza and with his power he can take him on, a year later Vegeta and Nappa came, Vegeta loved to Bulma and wanted to bang her, but Yamcha was stronger. Finally Freeza came and Yamcha easily owned him while in his 1st form. He later was granted eternal youth by prince Bartek. The screams of his victems are heard in the desert
As power ranger
Lord Yamcha first appeared as a mysteous green ranger using his move, Rogafufuken on mystic Gohan. It wasn't until Future Gohan and Princess Pan started to suspect that this warrior was Yamcha! Until he takes off his helmet, it was confirmed it was Yamcha. He traveled from alternative universe to stop Gohan's menace
In BH game 3
Yamcha fights Prince Vegeta, pissed at him because he raped Bulma and made him his prison b****, he easily owned base Vegeta mocking him, but lost to Super Saiyan Vegeta