Change the Flock's ability to convert tiles to the ability to just building things.

[UrsulaMejor]

flock are, roughly, a semi autonomous "grey goo" style robot swarm. They convert things to flock style stuff and break down materials to self replicate. It's a very common trope in scifi, and the "conversion" mechanic seems very on theme for that

The green substance is gneisis, if I spelled that right, and in-universe.it converts nearby materials to it automatically. The drone isn't so much doing the conversion so much as it's inserting the self replicating green goo stuff