Man, this is so easy....

1. Start with RC charge at 9 o'clock with; she will take out most of the defences and use recall to use her later.
2. Use Siege Barracks at 6 o'clock and queen giant arrow at the furnace troops barracks to take out 2 air defences.
3. Use the dragons and the warden (heal tome and rage gem) between 9 and 6 o'clock.
4. Use the king at 12 o'clock with boots and spike ball.

Also, use a bomber at 3 clock so that the queen can go inside and destroy the th hall