Augments are items which can be placed into Augment sockets, usually on Equipment items. Once socketed, they can be replaced by other Augments, but cannot be removed by normal means. The types of Equipment which an Augment can be placed into and the corresponding benefit provided are listed on the item.

Buffs are effects that boost a player or monster's stats for a duration or while a condition is met. Unless otherwise stated, Buffs of the same type do not stack — only the copy with the strongest effect applies.

Blocking completely prevents the damage of an incoming Hit. You will still take any Stun from the Blocked hit. You can't Block while Stunned or Frozen. Some Skills used by Bosses cannot be blocked. These are indicated by a red glow and audio cue during the windup of the Skill.

Shields are defensive items that are equipped in your off hand, usually granting Armour. While holding a Shield you have a chance to passively Block. Shields also grant a Skill that lets you Block incoming Hits more actively, either raising your Shield to absorb the Hit or Parrying the Hit depending on the type of Shield. Bucklers are a special type of Shield that do not grant any Armour and can Parry enemy skills instead of being raised to Block.

Hits against any target can potentially cause a Stun on that target, depending on the damage dealt. Stunning a target interrupts their current action and prevents them from taking actions for a short time. There are two types of Stun: Light Stuns last a fraction of a second but can be inflicted frequently. Any Hit has a chance to cause a Light Stun. The chance is based on the damage dealt, up to 100% base chance for Hits that deal 100% of the target's maximum Life. Chances lower than 15% are treated as 0%. Heavy Stuns occur when a target's Stun bar is filled and last multiple seconds. Hits cause Heavy Stun buildup based on the damage dealt. Players and their Minions usually cannot be Heavily Stunned, but players can receive Heavy Stun buildup where specifically mentioned while taking specific actions (such as raising their Shield, Parrying with a Buckler, or riding a mount). Player Physical damage and Melee Damage each have 50% more Light Stun chance and Heavy Stun buildup. These bonuses are multiplicative with each other. Monster Physical damage and Melee Damage have 100% more and 33% more Light Stun chance and Heavy Stun buildup respectively. These bonuses are multiplicative with each other.