Tsubasa RESERVoir CHRoNiCLE (2005)

S2E25 Freezing Ghost

Chaos has issued a challenge to Syaoran for Sakura's heart. The victor will earn the chance to journey with her, but Syaoran faces a setback when his sword shatters in a prior fight. To help him, Kurogane steps in to train Syaoran in the art of wielding his own sword. Can Syaoran learn to master Kurogane's weapon and ultimately overcome Chaos to rescue Sakura for good?