Vader and Obi-Wan Kenobi fought a final lightsaber duel near Hangar Bay 327 on the Death Star. ‘When I left you I was but the learner; now I am the master.’
If Vader and Obi-Wan are present at same site, use 1 Force to initiate a duel between them. Compare their power, and add 2 if that character is armed with a lightsaber. Loser (lowest total) of duel is placed out of play.