You guys have little bombs, giant bombs, spring traps, skeleton traps and walls to create havoc for ground troops. I understand that skeleton traps CAN be set for air also, however I think there should be an additional trap you can set for air. My idea is a net. Now, I'm not sure exactly how you would design the AI for this exactly, but I'll try to create a vision for you.
The easiest way to describe it would be a square base. Number the corners clockwise 1,2,3,4. One end of the net would be on one corner 1and the other end on corner 2. This would be a hidden trap of course and would be activated by detecting the gases emitted by balloons in flight. The net wouldn't be uber strong, just a slight hindrance.
Give them 6 levels of upgrades at 100/175/225/300/400/475.
Maximum of two nets.
Th7 min for net. Th10 for max.
No air troop can break net
Balloons or dragons attack cornered tethers to collapse net.
Lava dog gets stuck until tethers are destroyed.
Ground troops can target tethers once exposed, but don't make it a priority
2 tethers per net for levels 1 and 2 and 3. Three tethers for levels 4 and 5. Level 6 nets get 4 tethers.
Tethers only require one free space until level 5, then they require 2 spaces.
The span would be relative to the level. 8/10/12/14/16/20.
