I have just become aware of the changes to Detect Evil (the spell). Specifically the change to the aura power of aligned creatures of 5 HD or less. This change now renders the spell useless in detecting evil in creatures of 5 HD or less, as they have no discernible aura. You used to register a faint aura with 10 HD or less. Why the change?
Seeing as how the vast majority of classed NPCs and many of the enemy combatants, the kinds one is most likely to encounter (especially early on), are usually below this 5 HD threshold, this seems a drastic re-working of the spell. With perhaps unintended consequences?
The most relevant example being the fact that you give Paladins the ability to Detect Evil at will at first level, but make it virtually useless until he starts regularly encountering 5 HD opponents. Seeing as his ability to Smite Evil is largely dependent upon his ability to tell real evil, with a capitol E, from those others who are just behaving badly, it becomes a double hit.
I'm curious to hear other thoughts on this before I house rule it back to the 3.5 version of the spell in my home game.
Cheers!