Obi Wan Kenobied
This guy started as a Padawan, trained by Yoda, got a new teacher, killed a guy with two legs, took on Anakin, got knighted, uncovered a plot, killed a general, saved a president, hid for years, and got his butt kicked by his old student.
He started as a student, got knighted, and got his butt kicked by his old student.
He saved the president, killed a general, and got killed by his former student.
He trained by Yoda, took on Anakin, and got killed by Darth Vader.