They function well as traps, dealing damage to enemies when approached.Traps are the most expendable buildings in the game. They function well as walls, redirecting enemies away from the interior of your base or redirecting enemies into traps.They function well as exterior targets, blocking (or slowing down) enemies from attacking other buildings.Upgrading walls no longer increases might, nor do any walls built per Town Hall upgrade.They do not count toward completion percentage so an enemy does not need to target them unless required to do so by the AI when attacking other buildings.Walls are the most basic buildings in the game. They may however have higher HP than some of your buildings if many of your buildings have low levels. These buildings are considered low HP because of their inability to increase their HP.Because of their low HP all function well as exterior targets placed in locations that redirect attacking enemies from attacking other buildings.All have low HP, only have ONE level, and do not function well as interior targets while your heroes, troops, and towers kill the attackers.All three unlock game content and features.The Arena, Warehouse and Training Center are the most specific buildings in the game. Both have High HP per level and functioned well as interior targets while your heroes, troops, and towers kill the attackers.Leveling the Guild Hall will increase the number of Flags a player can hold at one time.Every Relic Hall level unlocks a new spell, new spell slot, or new spell level.Each Altar level reduces the waiting time. Heroes Altar's reduce the waiting time required for Heroes to revive when killed.All three unlock additional game content, making them very useful and fun to have.The Heroes Altar, Relic Hall, and the Guild Hall are the most special buildings in the game. Green garrisons are necessary to hit fast moving units like Assassins, Ninjas, Heroes with Sprint, and Savage Ogres. They are ineffective against flying enemies. Cannon Towers provide specialized defense, dealing area damage to ground targets.While they don't have the highest damage or Hit Points, they are quite useful when used with Blue Garrisons for stunning incoming attackers. Magic Towers provide simple defense dealing moderate damage to multiple targets.
They are weak against swarms of small troops or large packs of Ornithopters. They can be forced to target heroesand deal multiplied damage through the use of Garrisons. Arrow Towers provide strong offense by dealing high damage.
You can do this by surrounding them by towers, heroes, or troops. When you're trying to save up for large purchases, these buildings should be guarded with a high priority. They limit the amount of gold and mana you can hold.They store gold and mana acquired from mines, mills, dungeons, raids, Here Be Monsters, and purchases in the shop.Vaults are the most valuable buildings in the game. It looks cool when your town hall is located in a place that seems purposeful when designing your base.It functions well as a target for enemies to attack while your heroes, troops, and towers kill the attackers.