u/AffectionateAdagio90

I'm torn between these two. My main unit is the Horde, and I want to have a suitable fortress. Which one should I choose first, and why? Blazing-Chaos?

https://preview.redd.it/zo89ihyx7d1h1.png?width=784&format=png&auto=webp&s=210a04cbd5f06c6ff4c332e8064813f77d72f0d3