Ailment

Ignite, Chill, Freeze, and Shock are collectively known as Status Ailments.

• Ignite causes the target to burn, dealing damage over time as fire based on the initial amount of fire damage dealt.
• Chill slows the targets's movement.
• Freeze completely prevents the target from moving or using skills.
• Shock causes the target to take increased damage from subsequent attacks and can stack up to 3 times.

Duration

The duration of the Chill, Freeze, and Shock statuses are related to the amount of cold or lightning damage dealt. Bonuses to their duration can also be granted by skills and support gems, passive skills, and item mods. Temporal Chains will also increase the duration of all Status Ailments.

The duration for these effects are calculated as follows:

• Shock: 276ms per 1% max life dealt as lightning
  
• Chill: 138ms per 1% max life dealt as cold
  
• Freeze: 100ms per 1% max life dealt as cold
  

Status Ailments can also be triggered by skills such as Glacial Hammer, Burning Arrow, Chance to Ignite, and Elemental Weakness. When skills such as these trigger Status Ailments, the amount of relevant damage done is used just as it would be in the case of a critical hit. Because critical hits tend to do more damage than normal hits that can trigger a Status Ailment, the effects of a non-critical Status Ailment are often less severe. Such effects can still be quite powerful if the relevant damage type is very high. If the duration based on the damage would be less that 300ms, it's ignored entirely. The only exception is Ignite, which will still take place no matter the amount of fire damage done. All three are capped at considering 1/3 of max life - if you deal more than 1/3 max life as that element, the Status Ailment occurs as though you did exactly 1/3.

The maximum unmodified durations are therefore:

• Shock: 9.2 seconds
• Chill: 4.6 seconds
• Freeze: 3.33 seconds