Just checking... the vile damage thing from Astaroth...
Which does it do?
1) All the fire damage is fire damage, but half of it is considered vile (and thus won't heal normally)
or
2) Half the fire damage is instead vile damage (much like half of Flame Strike is "divine" damage), thus overcoming resistance/immunity, but not counting as fire damage (for things like regeneration, etc)
I don't have the sources handy to look it up. I'm assuming it is #2, but need to make sure before it comes up
Also, how would vile damage interact with regeneration? It is converted to nonlethal, but the regeneration can't heal the nonlethal? Or it's converted to nonlethal, then regeneration doesn't care, and removes it anyway?
I'll google around later today and see if anyone has dealt with this before.