Keep An Extra Gear With Elemental Resistances

As you progress through the campaign, your Elemental Resistances will be penalized and compound across all Acts (and Cruel difficulty). By the time you reach the Atlas Elemental Resistances need to Path of exile currency become a major priority for modifiers on your gear thanks to this creeping debuff and the sheer power of enemies in the endgame.

Though you should normally try to Path of exile currency for sale normalize your Elemental Resistances to suit most situations, certain maps and enemy types can be countered with high, but specific, Resistances. An area with lots of Fire enemies is easy with high Fire Resistance, an area with lots of Poison enemies is easier with high Poison defense stats, and so on.

If you find a piece of gear with a high resistance to a specific Element, keep it in your Stash. You never know when you'll run into a map filled with enemies that inflict 200% Freeze and Cold damage when a highly-tailored set of equipment with Cold resistance will do a lot more for your survivability than combat modifiers.