You do realize MR CASTLE ARCHER IS OP that if you have something like OH IDK a juggerknight/spearton (spearton is even better when it comes to this situation) that you can have him take in all the arrows, REMEMBER that the castle archers ONLY strike who they see first (with the one exception for when the second they are bought and if there are enemies within its range it will always strike the ones furthest from the statue)
Order: Here's what you do, you buy shield wall (spearton), then you get a spearton and whatever low tier units you want, then (I'm going to say he has 2 castle archers since 3 costs a whopping 1000 which he could of used to buy something a lot better) send your spearton into the war, that castle archer now has his sights on the spearton, bring the spearton to the top corner of the kingdom so it is taking in all the shots and then press the shield wall button, now that that castle archer is destroying that spearton you can now send in your units to attack the kingdom. But honestly you shouldn't only resort to low tier units only.
Chaos: Here's what you do, you buy one juggerknight or one chaos giant, then you send the juggerknight to the same spot I told you to place the spearton and then press the standstill button, the castle archer is now targeting him only, now you can send your units in to attack. Now the chaos giant the same rules apply only they provide more protection and can be upgraded to take in even more damage. Still you shouldn't be resorting to low tier units only.
Juggs and Speartons are TANK units, they can withstand the arrows of couse. But castle archers are damn powerful on other units excluding giants. And even Juggs and Spears take a lot of damage from a full pack.
And when you're in a large fight at the enemy's camp I find this hard to do. I'm talking about early game rushing being completely destroyed. Also, if you don't micro you're DEAD. I know you can avoid taking too much damage by microing, but they're simply too powerful.