Celene asked in confusion: "Then who do you plan to use it for? You dislike Divine Beasts and Amanata, don't you? The Undead Tribe doesn't need this thing either?"
Shaer couldn't help but retort: "Don't you know my largest temple is in Karin Harbor? Why don't you guess how many people are in that temple?"
If Shaer really wanted to raise an army, it would be quite easy... but her followers are skilled at plots and assassinations in the shadows, never engaging in direct confrontations.
Moreover, with the aid of Shadow Force, the Envoys of the Night are indeed somewhat similar to the armies of the Ancient Imasca Empire that relied on strange machinery for combat. Shaer truly has high control over her followers, knowing what suits them.
Additionally, in Imasca, it is possible to first set a primary master and then hand it over to subordinates for use... Shaer can take back the scepter from any subordinate she appoints at any time.