Bleach (2004)

S1E253 Muramasa's True Identity Revealed

Captain Byakuya Kuchiki of the 6th Division triumphs over Kōga Kuchiki as Muramasa spirals out of control, morphing into a Hollow version of himself. While Ichigo Kurosaki engages in combat with Muramasa, a number of Shinigami along with their Zanpakutō Spirits join the fray to lend their support.