Tuck this under your Fate card.
You are the Lord of Cluster 3.
Rivals with a Loyal city or Flagship in Cluster 3 are your Vassals in Cluster 3.
You may tax any cities in Cluster 3, ignoring control. (Take Captives if you tax cities of your Vassals!)
If you harm a Vassal in Cluster 3, or a Vassal harms you in Cluster 3, the harming player Provokes Outrage with all cities in Cluster 3.
Act: 2