Basically what if we can PERMANTLY boost our barracks and make it 2x faster instead 4 x
For your first barracks it will cost 50 gems
For your second it will cost 150 gems
For your third it will cost 450 gems
And by now you see the pattern. Each time you upgrade one barrack the next one cost 3 x more. So what do you think?
(Prices could be change)

