Solved

CLANG!

My sword clashed against it, and this time, it was not a greatsword that is clashed against it but a rapier.

I am not as skilled in rapier as I am in the greatsword, but I am sufficiently skilled enough to fight against this enemy who is attacking my weaknesses with the extreme precious.

I am very curious about its fighting codex; if I am ever able to uncover the secrets of the grey discs, then it would be one of the few things I would look at. My combat style would benefit tremendously if I were ever able to get a clear look at it.

The moment my rapier clashed against it, it had disappeared again and appeared directly above me and brought down its needle sword at my head.

It seemed to have made my head the biggest target; all three attacks were targeted at it. Even though it could target my other weakness and might even get the same result as striking my head if it can strike them.