Sorry for double reply.
You know how Blue Sophie has been angsting about her knowledge is power advantage? Savannah has immunity. Rizzo has the idol that everyone thinks needs to be played at six left but is actually five. Stephen has the block a vote.
Logic says can’t touch Savannah or Rizzo so Sophie is gone unless she can take either Rizzo’s idol or Stephen’s block a vote. So she uses the knowledge is power against Stephen. But he played it before coming to tribal council against Savannah, so he can honestly say he does not have an advantage. (It’s a new twist.)
But wait! There’s more! They teased us with Sage contemplating getting Stephen out. Won’t ever happen. Except it did. Tribal Council was unanimous against Stephen except for his vote. Rizzo once again faked playing his idol, Sophie felt embarrassed, and there you go.