This thing will allow you to change your townhall between 5x5 tiles 4x4 tiles and 3x3 tiles. it costs DE each time you change between how big your townhall are. How bigger your townhall are how more HP it gets. so if you fx have a 5x5 tiles it will have 10000 HP wich will make it alot harder to take out but alot harder to protect too. And if you had an 3x3 townhall it will have 1000 HP so it will be alot easier to take out but easier to protect too.
I dont know if this is a good idea i just have had this in mind in a while and here it is :P