Guide when your in Late Ages (6+) Extreme Castle Rush -> 30 - 60 and more Crowns per Attack
In later Areas (VI up) it is very hard to beat the castles, but there is a easy way to get them down every attack.A Castle Rush with Conrad the Elder and many Siege Rams.
build your team0.1
normal troops as scouts and cleaner0.2 many Siege Rams0.3 main hero Conrad the Elder (red circle)0.4 second "keep troops away hero" (blue circle)1.
Rematch a Strong Attacker (1000 crowns upwards) or search for a Strong Battle Enemy (100 crowns upwards)2.
use Scouts to activate possible traps 2.2
use 2nd Heroes to get Defence Troops away2.3
place all your siege rams and Conrad2.4
activate Conrads Special (rams are faster and unbeatable as long they blink)2.5
rush to castle and destroy it (i doesn't loose any match with this way)2.6
clean up with resuming troops as much you can