Deploy an Archer for checking the cc troops and make sure to lure and defeat the troops.
Deploy all of of your Balloons to destroy the Air Defense. After the Air defense is destroyed, deploy all your healers.
Deploy a Healing spell to heal the Balloons. Also try to figure out the direction the balloons will go.
After the important defenses are destroyed (such as Mortars and Wizard Towers), you may use all of your Archers.
See the results.
(No execution notes)
Normally this strategy works if the Air defense is being upgraded. Even though, you can get a 3-Star victory if you plan your attack correctly. I recommend you to use Giants as well since Giants are strong enough to destroy the Air defense.