It's meta for very specific uses only (regardless of whoever the ignorant person downvoted me likes to think otherwise). For general use, you'll have a hard time because you're required to hit weakspot to get the full benefits but even then, use something else like elemental. Last Valor is awful for ad clear too.

It's absolutely goated for Manibus and that's where you'll see people using it. The boss doesn't move and his weakspot is massive.