You are a
You know player X is innocent. Player X, however, has no information at all about you on his/her PM.
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Player X is a pro-town player randomly chosen.
I see it as a small information role. This role is completely non-confirmable (scum know who are the innocents), but it could change the strategy of the player a little, who can try to keep his "mason" alive.
What do you say? Good for a mini?