Orcs Must Die! 3 - Back to Basics #27 - Canyon Keep (Rift Lord)

I decided to do a challenge where I reset my account and took the shortest path possible to five-skulling all main campaign maps on Rift Lord without purchasing any equipment. This means that I am stuck with whatever weapons, traps and trinkets that I get from completing maps, which in some cases makes it so I had to switch up my strategies. And because I am a rebel, a renegade and a free spirit, I decided to continue with the Drastic Steps maps. The third map, Canyon Keep, is the only war scenario of the DLC which for the purposes of this challenge means that it takes longer to complete, has more enemies and spawns a boss. Also, if you're wondering what I was doing with the barricades on wave 3, so am I. Enjoy!