Frieza

This is as bad as it gets the space tirent is considered the most evil Villan of all DB/DBZ/DBGT because he kills for fun and killed an entire planet to keep him self the stronget in all the universe. But Goku defeated him and was to leave him for dead but he beged fo help being the good person he is Goku gave him a small peice of his power and gave him another chance. He left him with words that drove frieza mad "live with the shame keep it bottled up inside" he was defeated by what he despised so mutch just a monkey sayian. In his foolishness he blased at Goku but Goku blasted his evil carcas into the planets core. But he survived and was made more powerful by his father's sicentists he became friezabot and arived at earth to kill everyone and Goku. But a mysterious youth apeared frieza scofed him off as a weak fool and his scouters indicate a power leval of "5" but he easily kills all of his gards happy to find a sorce of amusement he takes the youth on but the youth slices him in half cuts him up into bitesized chunks (mmm sushi does someone have some wasabie) and blasts those away. The youth is trunks and will soon kill king cold and frieza is finally destroyed by "a pathetic sayian".