An habitable planet with primitive civilization ruled by priest-kings living in copper palaces. The priest-kings seem to be psykers who use their powers to dominate the populace. They see their “water” as a valuable trading substance.
The folks looked docile and generally tall and healthy, and they had only crude spears and primitive weapons, with only a few guards who seem like they even know how to fight. One could set up a slaving operation here if they got rid of the priest-kings first. If water is scarce on the world, pick up some water condensers.
Copper at least seems to be abundant, the planet could be worth prospecting for other minerals. The planet also seems fertile enough for food production.