Magic? Is it readily available in Utopia? And would a couple of thousand skeletons led by Galtran look good there? Or perhaps dragons in Utopia could be defeated using some kind of magic?
Seventh-level creatures are good, no doubt. However, with a ratio of 1:100, they are unlikely to offer significant resistance to skeletons led by Galtran. By the way, there might also be vampire lords and death knights there:)))
Auto-translated
