One of the most iconic scenes in all of the Star Wars movies is the lightsaber duel between Darth Vader and Obi Wan Kenobi on the original Death Star.  The two old enemies face off against each other while Luke Skywalker and Han Solo rescue the Princess.  As Luke and Han make it back to the Millennium Falcon they turn to see Obi Wan battling with Vader.  It’s at this point that Obi Wan says ‘You can't win, Darth. If you strike me down, I shall become more powerful than you could possibly imagine.’  With this, Vader strikes Obi Wan down and his body mysteriously vanishes.

 

This illustration features the lightsabers of both Darth Vader and Ben Kenobi.