Your strategy for playing as Necropolis.

and sometimes I have a shortage of sulfur... (if there are no corresponding mines nearby), but otherwise, I focus on developing the economy. In the early stages, my main army consists of skeleton archers and wraiths/ghosts. In battle, zombies stand with the archers, protecting them, the archers provide ranged fire, and the wraiths engage in melee combat. I accumulate a few vampires so that if they are defeated, they can recover somewhat. I develop the hero as a mage (dark magic, SUMMONING, chaos)...
This is my small, but effective tactic.