Defensive gameplay and other tactics.

By the way, I recently discovered another trick while playing as a Necromancer. I had to accept a battle with a limited mana pool. As a result, I decided to try a new combination. Specifically, I cast Spirit Link on the most dangerous stack of enemies. Then, the battle continued as usual, and as soon as I ran out of mana, I cast Divine Retribution on that stack. It killed everyone! This restored about 50 mana to me all at once. And if you think that Light magic is unnecessary for a Necromancer, you are greatly mistaken; it is just as important to him as Summoning.