Necromancer tactics against Conflux.

Well, saying that Conflux is the strongest city might be an overstatement, but it's definitely not weak, and not every faction can defeat it. Elements rely on numbers and magic. In my opinion, Inferno is the best counter against Elements because Archdevils and Efreet Sultans have high initiative and therefore attack first. And despite their strong magic, the heroes in Conflux are very weak warriors (unless they have powerful artifacts). This is where you can gain an advantage, especially if you upgrade the healing spell for everyone, and then there will be no problems!