Your favorite hero...

Can Kaspar manage with a tent? So what? He can resurrect 50 skeletons at level 20. But why?

In general, none of them have skills suitable for the final battle. No, it's better to take a hero who buffs creatures from the Necromancers. For example, Lucretia: she nicely buffs the main attacking stack - vampires, has a nice icon, and, in my opinion, a good starting skill. But still, Arantir at level 20 will kill any of his own heroes - that's the most powerful skill. And what does Vlad do?

Kaspar is a typical rusher. And in this, he has few equals. Besides, with a tent, you can not only heal skeletons but also remove effects. And Arantir is a campaign hero; you can't really count him, just like Markel. Besides, there's the Phoenix, as someone here noted. All Necropolis heroes can be used intelligently against different factions. Even Ravena against Chaos. Even Vlad. And Zoltan is very effective against mages and sorcerers. Lucretia and Orson are suitable against strong units - Heaven and Dwarves. Naadir does a good job against elves, even against Wing. So, all the heroes in the Necropolis are good; it's even hard to choose the best one.