Does a Build have to happen for Habsburg Monarchy (Livestock Colony) Level 1 to Gather Towns?
Does a Build have to happen for Habsburg Monarchy (Livestock Colony) Level 1 to Gather Towns?
No, there is always a Build Step, so the Level 1 "Migratory Herders" effect still Gathers Towns into every matching land, even if a Build Action didn't happen there because there were no Invaders present or because the Build Action was explicitly skipped.
