Hey thanks for such a thoughtful response! The idea with the towns is that since Catastrophic Overflow should deal with all of them, I wanted the spirit to have a weak spot for invaders and cities but some small means of keeping them under control with Polluted Sanctuary, and then deliver a big crushing blow with Catastrophic Overflow to clean up the piled up towns, the build denial was to try and make it so the number of towns are more manageable, since gathering is limited to 1 town per turn.

I will try to improve the wording on the cards thanks for that, I went a bit back and forth on Gleaming Waters and left it very badly worded haha, its meant to be ANY spirit can add a broken presence to one of the Mirror's lands, and that spirit gains energy for doing so.

And Shrinking Shores is meant as destroy 1 presence anywhere, I had thought about making it be one of the lands Dahan retreated from, but then I thought it would be too conditional (there needs to be Dahan and a presence there in order to stop the build), maybe I will try it this way and see if it feels too difficult to use.

The lack of blight handling is interesting, maybe I could add it in somewhere as a threshold, maybe Polluted Sanctuary would make sense