This is the all in advanced 11 vs 9 strat created by DW BuRnT.

Example of how it is done:

https://www.youtube.com/watch?v=cFKvSzNTezU

1. First just do a scout and put peasent with barrack in his base. Cancel before
finished and change it into a farm.

2. Blacksmith & Lumbermill for Cat

3. Defense guard towers for your base.

4. Keep creating Ballistas

5. Go Keep to get stable.

6. send out scout peasent and create fake guard tower attack conversion / take
down enemy troops

7. Have Castle ready & Hide Cannon towers behind guards.

8. Defend against second attack. Then move in with all units.

9. Expand. Collect gold for Paladin and Holy Vision.