New units in Necropolis. Discussion and selection between upgrades.

Good day to you! I've always thought that Necropolis was geared towards fighting primarily with middle-tier units and dragons, please forgive me, but they can't be the main offensive force. The main question for me arose when choosing a new upgrade for the Lich. I thought about it for a long time and decided to keep the Archliches, because in combination, it doesn't quite work out. Both hit poorly, and both resurrect poorly. What upgrade do you prefer?