Strategy To 3 Star Maxed TH9 Without Heroes

I spend a lot of time in TH9 without my heroes (upgrading) I searched for a good attack strategy to help me 3 star maxed TH9 without my heroes and it was so hard to do that , after the latest update test air attacks and I found the best way to do that , and I want to share it with you .


Troops:
5 Dragoons, 12 Balloons, 2 Lava Hound


Spells:
4 Lighting , 1 Earthquake


CC troops:
1 Lava Hound , 1 earthquake

Quote
in wars I look for a base with 2 Air defences close to each other (8 tiles far) so I can use 1 earthquake and 1 poison for the CC troops

the main idea is to look for a base with exposed Queen or semi Exposed (its range far 2 buildings from the red line) ,
use Dragons to take her down and the CC troops then start to surgically deploy the Lave and the Balloons
video:
link to uploaded video

https://www.youtube.com/watch?v=5rCaZTW9dDI