This is my best attack strategy over the air. I used this only for clan wars since,
- it is an expensive setup
- it ensures alomst 2 or 3 stars.
The setup is as follows:
|King and CC troops||--||5|
The idea is to clear out outer buildings using the king and CC troops in order to dragons can penetrate the inner section of the village. As dragons start to get the attention of air defenses, balloons are deployed targeting them.
One such successful attack is here.