This wall looks ordinary. But when you get too close, it transforms into a killing machine!
•This 'wall', which is actually a defensive structure, is unlocked at Town Hall level 10.
•The 'wall' behaves like a hidden tesla, which is 'hidden'. When not triggered, it looks exactly the same as a wall. When built, it takes the appearance of a level 9 wall and need to be upgraded to gain the look of level 10 and 11 wall. It takes time and more gold than a ordinary wall to be upgraded.
•Only has two fifth the durability of a ordinary wall at the same level.
•The 'wall' has a trigger radius of 1 tile, which is very small. However, multiple trap walls can be built (I think about 10 should be sufficient) at smart positions.
So how it works:
•The trap wall splits into two parts and move apart vertically. Between the two layers, spikes/saws appear and start to spin, doing a lot of damage to melee attackers within 1 tile. On the top, the trap wall becomes a flame thrower, which can do good damage to those fools on the sky.
•Very high damage and very short radius.
•Good against melee ground troops and air troops.
Sounds too OP?
•Weakness: Earthquake spell, takes double damage from earthquake spell as a wall and get triggered because it is too sensitive!
I am not giving out exact numbers here.

