Development of a Necropolis mage hero

So, let's talk about duels. The mage hero of this Faction has become my favorite. With one tactic, I won 7 times in a row against different players and different Factions. I easily handle Barbarians and Demons; I haven't fought Nagas yet. I fought the Preacher "to the last drop of blood," and I'll even describe it: He has a standard tactic: Guards protect 2 Elementals and the Preacher, Knights with an Angel attack, and an Archer is separated from everyone else to shoot comfortably. I won't describe the entire battle; the opponent acted decisively, cast Stone Skin on the Spider, the Elementals casted Banshee's Wail, and he used healing and resurrection spells very often. It took him a long time to break through my defense and completely eliminate my Archers. I focused all my fire on the Archers, Knights (who fell relatively quickly), and then only on the Angels, who tried in every way to protect the Spiders. At the end of the battle, I had 7 Spiders, 70 Banshees, and 30-40 Vampires left. He had 13 Angels and 26 Elementals left. Then he uses his last healing spell + 7 Angels, and I lose. In general, my 7 Spiders were in defense, and 20 Angels broke them down in 3 turns (his hero had long run out of mana and was attacking with a regular attack; I still had a little left). While the Angels were breaking down the Spiders, I quickly eliminated the Elementals and resurrected another batch of Spectres. After I finished off the Elementals, the proportions were 100 Spectres, 30 Vampires, and 15 Angels. So, here's the most interesting part: I used the little mana I had saved to cast a magical nuke on the Angels, dealing 1.7k damage, leaving only 10 of them. Then my opponent made a mistake. A FATAL mistake. He starts attacking my Vampires with Angels and his hero. Vampires are tanks in the hands of a mage hero, and when my Spectres hit the Angels a couple of times, he realized his mistake, but he still went for the win – he killed the Vampires. I won with 80 Banshees left. P.S. Spectres and Banshees are the same thing; I just say it that way so that the same word doesn't hurt my eyes. So, to summarize, the most dangerous opponent against Necropolis is Humans... only because of their insane healing, although we, Necropolis, also excel at resurrections. I haven't fought Nagas (Sanctuary) yet.