All of 自分's attacks are tricks, toying with his foe's perception & worldviews, achieving what appears to be magic.
[Sword & Magic]: 自分's sword tricks are so cunning & excellent that it is no different from magic, accomplishing random arcane feats such as getting cut in half, but shrugging it off, making his sword appear to enlargen into a hunk of metal, & etc.
自分 does this w/ lighthearted glee