Barracks

In MythWars, the Barracks is used to upgrade your Troops. The higher the level of the Barracks, the higher the Max Level of the Troops.

The Barracks option is unlocked at Castle Level 8, and you'll have to Convert another building into a Barracks. Then you can go inside it and click Troops to upgrade them. Please note you can only upgrade the same-color Troops, so if you have a Gold Troop then you can only level it up with other Gold Troops.