Ha ha, I wouldn't trust it to stop a car! Just step out of the way.

[Magic! He's never tried to use it to stop a living person, even. Its duration is short enough that it tends not to intercept any passersby accidentally.

He lets the borderline fade into nothingness, and crosses his arms, considering the prospect.]

It does cut ayakashi. If you're attacked by one on your own, it can be your defense and your attack.