Boost your builder to finish creating any sort of building in half the amount of time. The amount of gems it will cost varies upon the length it takes to build the building. For example, if a building takes 8 days to build, you can boost your worker and it will show you the amount of gems it would cost to build that building in half the time, which is 4 days. This would be a great use of gems. Instead of being able to only totally complete the building with a certain amount of gems, you will have the option to either totally complete it, or pay half the amount of gems to boost your builder to create that building in half the time. This will also allow more things to get built faster because it will reduce time consumption.
