False Vote - the ability for a Mafia member to vote in a round, but this vote will not be counted.
Why: It wouldn't be fair to give this ability to all Mafia members, as it would be too overpowered. However, it could be used to divert suspicion from the Mafia. For example, one Mafia member could vote against another (e.g., when there are 7 votes out of 7), but their vote would not be counted. This would be the opposite of a double vote. And no one would know whose vote it was, but suspicion would be diverted because everyone could be suspected.
P.S. The Mafia member must inform the Game Master that this is a false vote, not a real one.