Tactics against Necromancers.

I've been playing Heroes since the very first installment, and I've been playing the third game for 9 years now:smile17:

Considering the hero's specialization, the main goal is to level up quickly. To do this, first buy 2 heroes and, with a combined army, cause some minor chaos. Then, get archers to level 2, and by the 3rd week, buy more archers and you can start attacking stronger monsters. In the artifact market, buy boots of speed and gloves; the rest is secondary and can be found. Gradually replace harpies and taglads with angels and wyverns from neutral dwellings and lairs (don't forget about morale; you need to buy or find artifacts that give +2 to morale).
Final battle: if there aren't too many skeletons, less than 1500, then confidently use tactics to move wyverns, angels, dragons, and minotaurs to the front.
We start first, then a massive run and attack follows, with the following priority: angels = skeletons, dragons = skeletons, minotaurs = skeletons, wyverns = liches, manticores = liches, archers attack depending on the situation, but the undead no longer have archers or skeletons, and after that, it's just a matter of technique.