Bouncing an idea around after reading some from the "other" place:

A jail cell in each of the four cities (like the ones in Hamsah) with a toggled command by good and neutral tribs to throw people in there when their health gets low (i.e. like what happens in Hamsah). It would also add a bunch of fun to plan a raid to get your comrades out. Scion leader in the pen? How about the Captain? Make the key somewhat moderately difficult to get and you add a new, dangerous dimension to Tribunal.