Talk:Transcripts/Common Ground/@comment-39409125-20190509104038/@comment-7345250-20190509105625

I added this to the list of allusions myself. It refers to Dungeons & Dragons, where Charisma is one of the six ability scores or primary stats. Specifically, it refers to one's "force of personality" and social maneuverability. It usually falls on a scale from 0 to 20, so 17 is above average.