I have seen people that don’t track spell slots for NPCs and just have them all at-will, which I think is an interesting idea. But I tend to give players non-combat objectives in their encounters, which prolongs them significantly so spell slot usage can become important for balance for NPCs in those cases.
As a DM, are you tracking PC spell slots? That seems like a lot of extra work! Or maybe you just mean NPCs…
NPCs! Definitely not PCs! Ha.
I have seen people that don’t track spell slots for NPCs and just have them all at-will, which I think is an interesting idea. But I tend to give players non-combat objectives in their encounters, which prolongs them significantly so spell slot usage can become important for balance for NPCs in those cases.