Release your PEKKAs around the outside of your opponents base, not too close together but not too far apart.
If there are any Air Defenses far from the center, try and spawn your PEKKAs close to them to save your Dragons.
After the PEKKAs have destroyed one or more Air Defense, spawn your Dragons on the same side as the PEKKAs.
Cast two rage spells close to each other so the Dragons will be effected.
Once the PEKKAs reach the center compartment, drop a Jump Spell strategically so the PEKKAs can jump over the walls easily. At the same time, drop your last rage spell wherever the majority of the rest of the Dragons are.
This should get you an easy two star and if you're lucky maybe even a %100