It wouldn't hurt, but this set is actually nonsense, it creates a clear imbalance. Yes, it's hard to collect, but it's quite possible in the late game, and whoever collects it gets a huge boost in level seven creatures and effectively wins against an opponent who doesn't have the set. The main thing is to get protection against mind control (vampirism, antimagic, skilled dark silencing on the Orc) and then you can dominate.
Posts from Sets for Necromancers.
Can a set add seven-level creatures from another faction if they are present in the army?
It seemed to me that he adds exactly those units that are in the army (if the slots are filled). However, Gugolok disagrees with me. It should be checked.
Yes, I checked, and Gugolok is right. Non-native creatures are not added, unfortunately. If all slots are occupied by other level 7 creatures, then no one appears.