Tuck this under your Fate card.
You are the Lord of Cluster 5.
Rivals with a Loyal city or Flagship in Cluster 5 are your Vassals in Cluster 5.
You may tax any cities in Cluster 5, ignoring control. (Take Captives if you tax cities of your Vassals!)
If you harm a Vassal in Cluster 5, or a Vassal harms you in Cluster 5, the harming player Provokes Outrage with all cities in Cluster 5.
Act: 2