clearstream
(He, Him)
It doesn't matter if they use "different rules". Different rules are still mechanics!So, in regard to NPCs....they very clearly use different rules than PCs. The books do say that you can use PC creation rules for NPCs if you like, but recommends not doing that as it would require a lot of extra work. And in all of the published material, I can't think of any NPC who has been constructed like a PC. Not even such a major character as Strahd uses PC creation rules.