Resistance

Resistance is an effective survival mechanic that directly reduces the corresponding type of damage taken by a certain percentage.

There are 4 types of Resistance: Fire Resistance, Lightning Resistance, Cold Resistance, and Erosion Resistance. Fire Resistance, Lightning Resistance, and Cold Resistance are collectively referred to as Elemental Resistance.
When monsters deal a large amount of damage, it is mainly Elemental Damage, so increasing your Elemental Resistance will effectively reduce a large amount of Elemental Damage you'll take from them.

Effective Resistance.

Your initial Elemental Resistance and Erosion Resistance are 0.

The base Max Resistance is 60%% for all Resistances. This can be changed by increasing the Max Resistance %%. Max Resistance is capped at 90%%.

The final effective Resistance is the smaller value between the player's current Resistance and the Max Resistance

Resistance

+15% Elemental Resistance
+20% chance to avoid Elemental Ailment

Resistance

+1% chance to avoid Elemental Ailments for every 1% effective Erosion Resistance