sorry wes i should have explained that better but i didnt realise you didnt understand.
i role claimed as a mason due to the other mason being killed. there are only two masons and the only power we have is that we know that the other mason is a townie. by claiming to be the other mason the town know that i am innocent.
there is usually 3 mafia and they know who each other are. their target is to kill the rest of the town and take over. they dont know who anyone is or what roles they have. we have taken one down so there is two left
the doctors night power allows them to protect someone from night attacks so if a mafia member says kill steveryals (for example) and the doctor decides to protect them the night attack by the mafia is nulled.
a cop can investigate someone in the night to find out who they are but the godfather will appear innocent. the henchmen will appear to be mafia though. only the cop can see this result so they will then need to persuade the rest of the town that these people are mafia without arousing the mafias suspicion.
There are sometimes role blockers, like in the last game, vigilantes, serial killers, bullet proof townies and cults.
At the moment we all think you are mafia so if you were to tell us your character and role it would save us lynching you if you were indeed innocent. you may say that it makes you a mafia target but, as explained, anyone that isnt mafia is a mafia target anyway. the doctor could try and protect you during the night if you have a role that benefits the town.