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.

Spells are skills that use raw magic to destroy your enemies. Attacks are not Spells. Spells have their own base damage, cast speed and Critical Hit chance determined by the skill. They do not benefit from a weapon's inherent damage, attack speed or Critical Hit chance.

Lightning damage is one of the five Damage Types. It is reduced by Lightning Resistance. Lightning hits have a chance to Shock based on how much Lightning damage is dealt.