Say your upgrading your wizard tower, it takes 5 days to upgrade and it gains 100 HP from the upgrade, What if every day of the upgrade, the tower gains 20 HP instead of the 100 at the end. To me this makes more sense because it shows that the builders are actually making progress instead of just hitting a hammer on a building. Tell me what you think below, feel free to ask questions too!
P.S this works for all buildings and upgrades, not just wizard towers.

