I have a pc who has the fire subtype w/ vulnerability vs. cold (you take +50% damage from cold) and now has a ring of immolation that halves cold damage that you take. Does anyone know what order I'm supposed to figure out the effects? I'm tempted to just rule that the abilities negate one another and he has normal resistance to cold, but I know the math is different looked at that way.
I believe the math is about the same either way. I run it as natural vulnerabilities take precedence so +50% then magical defenses. Though the other way around makes solid sense too.
50 damage +50% is 75 then halves for 32. Halved for 25 +50% is 37 so not too big of a difference either way.