My theory is that as I stated before there is a mafia janitor that used his 1-shot ability to hide Blackmage's role. The reason I said to not rule out Masskid claiming firefighter is that there is no 100% certainty since whatever role Blackmage had is a wildcard.
The chance is low, guaranteed, but not nonexistent as well as any role anyone claims which is why I'm hesitant to divulge my (meager/important) role.
---------- Post added at 03:49 AM ---------- Previous post was at 03:48 AM ----------
This.