User blog comment:FgoMinami/Kakyoin Noriaki/@comment-25848535-20190906194950

Pierce Invincibility is too much on NP, plus piercing Invincibility means it actually bypass a shield/armor/barrier like defense, which I don’t think is the case with Emerald Splash Grand Kekkai- it would be more suitable as Sure Hit granted by its coverage.

Still very dope though...