The scaling of the hunters on higher ng levels is so broken, once you get to like ng5 or 6 their health pools are just impossible. You just spent what feels like forever fighting the crow, basically perfectly because a single bullet takes away most of your life, chipping away at his health. And then once it gets below like half or something you have to now be incredibly aggressive because he will heal, and wipe out the last 5 minutes of work.

He's just impossible. But even other hunters like younger Maderas Twin just can't be defeated, or at least, I couldn't manage it