Necropolis – a triumph or a failure?

Actually, I'm a fan of Inferno.

Guys, I need your help. Today, I decided to play Heroes 5 for the first time (before that, I only played the single-player campaign), and I don't know all the tactics + what to upgrade and what creatures to buy. So, I want to ask you: in what order should I build the Castle, capture mines, what creatures should I buy, which heroes should I use to defeat neutral creatures, and how should this happen? What skills should I develop for which heroes, which schools of magic, and why? I want to not just follow some scheme, but also understand why and why I'm upgrading in this way, this hero, in this situation.

Lord_de_Sat, I could also say, "A championship was held in Poland, and only the best Heroes players were there. And there, Orcs, Inferno, and other factions completely crushed the Necromancers," so what? You say that you saw it and that it's all true, but who will believe you? Maybe you're just obsessively praising your favorite faction, which isn't any stronger than the others.