The most challenging maps for you.

What are Dess's objectives – to break through the sea helmet and end up in prison? And how can you kill 4k elementals at the beginning of the second month? You need a leveled-up hero and 100+ archangels for that. And at the same time, you need to develop the Stronghold to break through the phoenixes or at least defend yourself somehow. For me, the map seems impossible :)

You need to take Utopia on Barbarian Respect on the 2nd week and use that money to buy archangels and upgrade them. The main thing is that Utopia gave good stat-boosting artifacts. At the beginning of the 2nd month, you should have about 50 archangels and a large number of monks, the rest is cannon fodder + hero stats, preferably around 20-30, mass magic like haste, and I think they will fall easily.