As Ograoum mentioned, you can have plenty of mistresses. In my case, I didn't even leave the main base. I just accumulated mistresses, trained them, and scavenged for more. After using the "Multiply Creature" special, I ended up with around 52 of them. They researched "Destroy Walls" incredibly fast. Combined with fast-clicking CTA, casting Armageddon allowed Mistress Ray of the Dead to vaporize absolutely everything apearing on my Heart to dust. Which is kind of sad as map looks nicely, but I didnt feel like I had to go out to win. It just need some restrains what you can do.

This level works fine, has no major issues and is playable. It's a simple 1v4, kind of since you fight each Keeper one after the other.

It does have some issues, the most "serious" one being that the level more or less beats itself. I started the map, started building my dungeon and mined the gems. Since I was given a temple right at the beginning, I started sacrificing my beetles and spiders immediately. I quickly realized there was a lvl 10 neutral Mistress in the top left area, whom I grabbed right away along with the lvl10 imp with her. That allowed me to rush through the researchs and get to the torture chamber.

From then on, a lot of Mistresses entered my dungeon and I ended up with 20+ of them, 3 spiders, 2 warlocks and a single dragon. Since I couldn't progress without the Destroy Walls spell (unless I used Armaggeddon), I trained all of them and waited to fight the first Keeper. A scavenging war started before I could attack Black, so I got 15 more Mistresses.

I knew I had won, so I killed Black, used the Multiply Special I got where the lvl10 Mistress was and used Armaggeddon to obliterate the 3 helpless Keepers. I ended up with 64 Mistresses, 2 Avatars, 40 Wizards and so on. I wanted to see how much I could grow but got bored.

3/5 since it looks like one of your first levels. It needs more challenge, even if it's made for beginners.

1/5 difficulty, if not 0.

Was the map's name a reference to "Dune"?