Quote Originally Posted by acer5200 View Post
3 of the 10 waves are practically useless against a 5.2k with at least 1 pike/sword. The cav and pike smacks will definitely hit the cavs/phracts in the city even with a 5k up... since I'm a mechanics noob that's all I'm really gonna say without looking any stupider >.>
All waves will be practically useless if you don't have that huge amounts of cavs and phracts in a 5.2k defense.

I think you know the battle mechanics more than what you're trying to project. You most probably have read the reactions from the previous puzzles and they made a lot of knowledgeable guys looked not so knowledgeable in their first few attempts. And took concerted efforts to solve also. That puts you in the same situation now as they were before.

It definitely has to do with walls but I think a certain layer or two need to be cut out/down as well.
You're heading in the right direction. You need 1 more idea and you should be good to go.