# Secondary damage **Secondary damage** is a component of certain [[attack]] and [[spell]] skills. It is also attainable through certain passives and items. It is a [[damage]] source that is not itself a spell, an attack or [[damage over time]]. [[Modifiers]] to attacks, spells and damage over time do not apply to secondary damage, although it can be scaled by other kinds of damage modifiers where applicable. For example, the secondary damage component of [[Detonate Dead]] can be scaled with modifiers to area damage, [[fire damage]], and Global damage. The secondary damage component of skills can be [[block]]ed, [[dodge]]d or [evaded](Evasion) according to whether the skill is an attack or a spell. ## Sources other than gems Explosions - All explosion damage is considered secondary damage. This includes explosions from items, ascendancy passives, keystones, and cluster jewel passives. - For more information see [[Explode]].