Crimson Longinus
Legend
I have said it about 100 times in this thread: it is for things like a trial or a formal courtly intrigue scenario or negotiating with powerful entities or factions.
How are these not normal conversations, or series of them? Perhaps a trial isn't, as that indeed has formal structure diegetically as well, but it also isn't something that comes up often enough to warrant a subsystem. (I literally cannot remember ever roleplaying a trial. Perhaps it has happened at some point over decades and I have forgotten.)