A moment ago, Agnes saw Eris's Genesis Core changing from defense to offense in such a smooth way and she had to admit she was impressed, writing a formation on top of another one is no joke.
The purpose of a formation is settled once the latter is engraved, so going from full defense to full offense as Eris did, is not easy at all, Agnes's doesn't have too much knowledge regarding rune mastering, but that doesn't mean she is ignorant about the subject.
It's not like she hasn't seen anyone overwrite a formation like that, but all of them were Soul kings with a single special exception.
'Her soul energy doesn't lose in terms of quality with cousin, and those runes are on par with William's older sister ones, where did Aster find her… whatever I won't lose either', if anything Agnes felt the urge to not be left behind.
