Two Sets of Rules, the Good and Bad?

[MaxWilson]

Even if making a 7th level Diviner NPC, there's little reason to build them as a full PC. When you create the stat block for this NPC are you really going to add features like Divination Savant? It's entirely irrelevant for an NPC. Even possibly relevant abilities like Expert Divination which might grant extra spell slots seem rather pointless, it's just work for no reward.

What do you mean by "add features"? The feature is there in the PHB. It probably won't be relevant, and I'm certainly not going to write "Divination Savant" in my notes because "Diviner 7" already tells me that it has all of the features of a Diviner.

Eliminating Divination Savant or Expert Divination would be extra work, because then I'd have to write "Diviner 7, but without Divination Savant", and why would I ever do that? It complicates the NPC for no reason. I need that space for other things like documenting the NPC's relationships with PCs and other NPCs.