自分 walks w/ an air of nonchalance, not even wielding a sword as he counters all of 相手's moves w/ his fists, reflecting all hostile intent back w/ the principle of Karmic Retribution & Dialogue
[Formless Sword]: Finally, in the final clash, 自分 unleashes a [sword], a formless intent sharpened by skill, slicing through 相手's hidden weakness when they least expect, taking advantage of complacency