If Xander’s Murasama somehow broke, what should he use to replace it?

4: Repair the Murasama (if possible)

What if it were something like mjolnir in thor love and thunder where it can separate into shards then reform with magic?

You read my mind-

Lmfao

2: A Talwar made from the same materials as the Murasama

3: Another one of Xander’s weapons

1: A Polish Sabre made from the same materials as the Murasama