Soul Eater, Vol. 13

As Maka and a team of DWMA students slip into Baba Yaga Castle in the
guise of Arachnophobian guards, Black*Star opts for his usual style of
entrance: loud and without a trace of subtlety! But although Black*Star
doesn't seem to have changed much on the outside, inwardly he has at
last found the way to harness the true power of the Uncanny Sword. And
that means he's ready to test his blade in a round three rematch against
swordsman Mifune! Will Black*Star's transformation be enough? Or will
he once again find himself at the mercy of the great samurai?!