Skills in the game

Since I play as Necropolis, I prefer to develop the land, and I always choose Tanta as my main hero because raising the dead is crucial. At the beginning, it's good to clear everything with skeletons, and then I replace Tanta with vampires. I also develop a second town where the main force consists of liches and knights.
And my second favorite magic is, of course, fire magic. Especially a hit-and-run tactic with a couple of efreets.