The Ermah Guard strikes without warning. The mere mention of it is enough to give people goose bumps.
Ermah Guard is a short ranged high power defensive structure that first unlock when the Town Hall reaches level 7. It is the smallest defensive structure and has the shortest attack range. However, it can rapidly discharge high damage lightning bolts to any emeny that comes within its range of attack. It is also very costly to build/upgrade and rather fragile.
The Ermah Guard looks like a structure that is built with part of it lowered into the ground. It even has something that looks like a trap door. It makes us wonder if it is originally designed as a hidden structure that pops up on approaching enemies.