So the famous Stars Wars cantina is really a multiverse place to drink. Obi once again cuts off Baba's arm. There are several sword carrying folks from various universes, let's say that they take offense and confront Obi. Who wins the duel? Now Obi's light saber has only the feats seen with light sabers in the movies and his skill and speed is what is shown in the movies (even when young).
The fights are individual. They don't have to be a sequence to tire him out. You could consider them as just individual. Here's the list:
1. Elric of Melnibone with Storm Bringer. My favorite fictional sword
2. Katana and Soultaker
3. MU's Black Knight - Ebony Blade or Excalibur
4. Saberhagen's books - pick your sword
5. Aragon - Andúril
No Sword of Superman, LOL. Do we know (how would we?) if the light saber is assumed to cut throw those blades. That's kind of boring.
If you have some others, feel free to add them. I was tempted to add the Monkey King's staff but having Obi turned into a flapjack immediately seemed a stomp.