Right now, Sentinels have 3 possible prefix affixes on body armor and helmets:
- Poison damage taken as Physical
- Necrotic damage taken as Physical
- Void damage taken as Physical
And also 3 possible prefixes on class idols:
- Fire damage taken as Physical
- Cold damage taken as Physical
- Lightning damage taken as Physical
Those affixes are almost never used. It is just not worth it to give up you precious prefix slots on such high contested items as Body armor or Helmet, and even less so on idols.
And what makes those affixes so worthless is the fact that, with the exception of some bosses, most content in the game throws a lot of different damage types on you. So giving up a prefix slot just to reduce damage taken from 1 damage type doesnât look like a good idea. Also, the reduction is not that great also, T5 affix goes up to 45% X damage taken as physical, so lets do some math here.
Lets say we have 30% DR from armor for physical damage (21% DR for other types)
So we take 100 necrotic damage. Armor reduces it to 79.
With 45% Necrotic taken as Physical we take 45 damage as physical, reducing it to 31,5 and 55 damage as necrotic, reducing it to 43,45 for a total of 74,95.
So we went from 21% to 25.5% reduction for our example. For 1 damage type.
You could say that you can use those affixes on different gear sets for different bosses or dungeons (like Soulfire bastion which is Necrotic/Fire only), but who would ever do that? It is hard enough to get 1 set of great gear for you character, let alone several.
So what we have are class-specific (which makes them rare and supposedly valuable) affixes which are actually practically useless.
And we finally come to the suggestion part:
Reduce the values, but make those affixes be multityped. So Necrotic and Poison and Void damage taken as Physical for Body armor and Helmet prefixes and Elemental damage taken as Physical for idols. This would make them much more useful and would justify giving up some offensive prefixes for a more tanky character.