Items can be Normal (grey), Magic (blue), Rare (yellow) or Unique (brown). Item Classes which do not have these rarities, such as Currency, have individual rarity for each item. Magic items can have 2 Modifiers; a Prefix and a Suffix. Rare items can have up to 6 Modifiers; 3 Prefixes and 3 Suffixes. More powerful and dangerous enemies are more likely to drop rarer Items.

Damage gained as a specific damage type only scales with modifiers to the new type, not with modifiers to the source damage's type (unless they're the same type). For example, Lightning damage gained from Physical damage scales with Lightning damage modifiers, but not Physical damage modifiers. Damage Gain occurs in the same two step process as Damage Conversion. Damage over time cannot benefit from damage Gain.

The three Elemental damage types are Fire, Cold, and Lightning.

Cold damage is one of the five Damage Types. It is reduced by Cold Resistance. Cold hits apply Chill and build up Freeze, but cannot build up Heavy Stun.

Physical damage is one of the five Damage Types. It is the most common and the only one reduced by Armour, rather than by a Resistance. Most physical damage comes from Weapon Attacks, but some Spells and other skills deal physical damage as well. Physical damage over time can be inflicted with Bleeding.

Strength, Dexterity, and Intelligence are the 3 primary attributes. The most important use of Attributes is to meet requirements to use Equipment and Gems. Each Attribute provides a different inherent bonus.