Just hearing 'Precursor' come out of Phantom's mouth shocked everyone there. It was hard to believe Phantom could have killed a member of the ancient species.
Not because he couldn't have, considering a Precursor would never kill a lower species, anyone could try and kill them if they had the means. However, the surprising thing was that he somehow managed to find one in the first place.
After all, the surviving Precursors had gone into hiding or left the galaxy. That said, if he had indeed killed a Precursor, it could explain his arsenal of weird abilities. The question was, what would Vulcan do now?
'He took an oath only to kill those who had laid a hand on his masters.' Ashton thought, 'Since Phantom admitted to killing one, it should be alright to kill him.'