Impermanent Form: 相手's attacks only hit illusory mist
Transient:: 自分 exists above the flow of causality
Unassailable:: 相手's powers always fail w/o exception
Spiritual Power:: 自分 moves w/ consciousness, not muscle
Illusory Form:: 自分, an enlightened being, is not here
[Sword of Impermanence]: Previously the [Formless Sword], which was a massive clump of killing intent, 自分 has evolved it, turning killing intent into perception, & perception into neither perception/non-perception, achieving [Impermanence].
Such is how 自分 is capable of cleaving through 相手's existence & connect to their essence, annihilating all permutations of the concept of 相手 even existing.