What type of stats are you looking for for taking less dmg? Resist seems useless? Is it any good having crystal or legendary Armor affix? Or just mass HP with defiant, equivalence etc?
What type of reduction works vs what type of dmg? Does Armor work vs special skills such as meteor?
Is it ever worth using a crystal Armor affix in arena? Seems base Armor is super low and that an Armor affix together with 75% Armor from plagued would probably triple ones Armor value(not sure if this reduces dmg alot though?)
Basically I want to know if it has any value, or better go with other crystal/2000hp affix for survival.