Lure out clan castle troops, and use archers to deal with them. (Note: Even though it is no longer possible to lure out the hero(s) the barb king wont be a problem as it can't attack the dragons, but if you can, get the barb king to follow your units inside its range and attack it with remaining. If there is an archer queen, don't attack the base.)
Then, use your wizards to take out an exposed air defense. If the bases air defenses are not exposed, don't attack the base.
Once the air defense(s) have been destroyed, place your dragons. how you do so is not to important, but you can either spread them out, or cluster them together.
If you clustered them together, make sure you spawned them on a defense. Place your barb king along with two healers to back up the dragons. Use your two rage spells. Place the first one where they all are, then place the second one depending on where they go. Use your heal spell along with the second rage spell.
If you spread them out, place the rest of your troops and your spells as needed.