Basucally, every good trainer was assigned a type. Every day phase you vote for a type and a letter. A, B, C or D
The letters could mean Death, 3 vote penalty, immunity to one night kill, or Next action will be twice as effective.
The meaning of the letters changes every round. Since you have no idea who is what type and what the letters mean those are all about luck.
Basically, luck is now a factor in mafia