Manifestation:: At this moment, 自分 is death itself
At this moment,: 自分 can't die, as dying removes death
Wisdom:: Accrued like the BlackSand of River Styx
Essence Sword:: The manifestation of his essence—death
Essence Sword:: Changes depending on his interpretation
[To Cross]: Living in fear of death his entire life, 自分's enlightened, finally accepting death & crossing River Styx w/ every strike, each step a leap of faith deliberated over a lifetime of accumulated wisdom—a black river flowing within his sword as he leaps beyond death itself, essentially transcending it, as he no longer has anything to fear from 相手—for at this moment, he's death itself