Elemental Reactions are triggered by applying certain combinations of elemental effects on a target (enemies, players, or objects).
When an element is applied to a target, it alone will usually last 9–12 seconds (sometimes longer) depending on the skill used, after which it will decay and disappear. The element will appear as a status symbol above or on the target and is sometimes referred to as an elemental aura.
Elemental Reactions occur when applying multiple elements to a target (applying a second element to an existing elemental aura). Sometimes, the reaction will remove the elemental aura from the target. Other times, the elemental aura will remain and have its duration reduced. Sometimes, two elements may coexist simultaneously on the target. Exactly when each situation occurs depends on the skill applied and the specific Elemental Reaction.
The specific details can be explained by Gauge Unit Theory, a framework for understanding the duration of elemental auras, the internal cooldown of elemental applications, and how elemental reactions interact with them.
Elemental Reactions have the following effects:
|Second Element||First Element|
Elemental Reaction damage can be increased by the Elemental Mastery of the character causing the reaction. The in-game interface shows the damage bonus provided by the character's current elemental mastery. This bonus will be applied in different ways, depending on the type of reaction.
Notable sources of Elemental Mastery include:
- Instructor's set's 4-piece set bonus grants +120 elemental mastery for the team when the character with the set equipped causes an Elemental Reaction.
- Sucrose's passive talents (Catalyst Conversion, Mollis Favonius) can provide elemental mastery to other team members.
- Some characters, such as Lisa, gain elemental mastery as a specialized stat starting at their 2nd Character Ascension.
- Transformative Reactions include Overloaded, Shattered, Electro-Charged, Superconduct, and Swirl.
- These reactions have a base damage determined by the level of the character triggering the reaction.
- This base damage is then multiplied by a percentage determined by the Elemental Mastery of the character. The percentage can be seen in-game in the Details section of the Attributes page.
- The damage from these reactions cannot crit and is only based on level, meaning ATK, Crit Rate and Crit Damage have no impact. However, the damage is affected by the target's elemental resistance.
- Since Superconduct has the lowest base damage, the other reactions can be expressed in multiplicative term of Superconduct base damage. For Superconduct, Swirl, Electro-Charged, Shattered and Overloaded, these values are approximately 1: 1.2: 2.4: 3: 4 respectively. So it can be said, for example, that Overloaded base damage is approximately 4× Superconduct base damage (all other factors being equal).
- The reaction damage will be an additional instance of damage on top of the damage from the skill, making it difficult to discern due to the overlapping damage displayed values.
- Amplifying Reactions include Vaporize and Melt.
- Unlike transformative reactions, Melt and Vaporize replace the damage of the attack/s that triggered them.
- These reactions multiply damage of existing attacks by either 1.5× or 2× depending on which element triggers the reaction.
- Damage from these reactions can be critical and considers the target's elemental resistance.
- The damage is multiplied again by a percentage determined by the Elemental Mastery of the character. The percentage can be seen in-game in the Details section of the Attributes page.
- The bonus % to Vaporize and Melt is roughly half of that to Overloaded, Superconduct, Electro-Charged, Shattered, and Swirl, though the damage being multiplied can be much greater than the base damage of the other reactions.
- 1.5× reactions will tend to preserve the initial element for multiple hits, while 2× reactions will tend to immediately remove the initial element.
Order of Application
The damage of an Elemental Reaction scales off of the stats of the character who applies the trigger (second) element and is reduced by enemy elemental resistance. The triggering element will be displayed on the left of reaction animation over enemy's head, while the base element will be displayed on the right.
In the case of Swirl spreading an element to an elemental slime (e.g. a Pyro-infused swirl reaction hitting an Electro slime), the resulting damage scales based off the level and elemental mastery of the slime, not the Anemo character, though the swirl damage itself gets its scaling from the Anemo character.
(1st ← 2nd)
|Melt||←||Damage considers additional multiplier of 2 along with additional multiplier from elemental mastery.|
|←||Damage considers additional multiplier of 1.5 along with additional multiplier from elemental mastery.|
|Vaporize||←||Damage considers additional multiplier of 1.5 along with additional multiplier from elemental mastery.|
|←||Damage considers additional multiplier of 2 along with additional multiplier from elemental mastery.|
Some talents have special effects when an Elemental Reaction is triggered. 5 Talents match the category selection:
|Sucrose||Catalyst Conversion||When Sucrose triggers a Swirl effect, all characters in the party with the matching element (excluding Sucrose) have their Elemental Mastery increased by 50 for 8s.||1st Ascension Passive|
|Qiqi||Life-Prolonging Methods||When a character under the effects of Adeptus Art: Herald of Frost triggers an Elemental Reaction, their Incoming Healing Bonus is increased by 20% for 8s.||1st Ascension Passive|
|Kaedehara Kazuha||Poetics of Fuubutsu||Upon triggering a Swirl reaction, Kaedehara Kazuha will grant all party members a 0.04% Elemental DMG Bonus to the element absorbed by Swirl for every point of Elemental Mastery he has for 8s. Bonuses for different elements obtained through this method can co-exist.||4th Ascension Passive|
|Sayu||Someone More Capable||When Sayu triggers a Swirl reaction while active, she heals all your characters and nearby allies for 300 HP. She will also heal an additional 1.2 HP for every point of Elemental Mastery she has.
This effect can be triggered once every 2s.
|1st Ascension Passive|
|Fischl||Undone Be Thy Sinful Hex||If your active character triggers an Electro-related Elemental Reaction when Oz is on the field, the opponent shall be stricken with Thundering Retribution, dealing Electro DMG equal to 80% of Fischl's ATK.||4th Ascension Passive|
Some constellations have special effects when an Elemental Reaction is triggered. 1 Constellations match the category selection:
|Keqing||Attunement||For 10s after Keqing triggers an Electro-related Elemental Reaction, her ATK is increased by 25%.||4|
Some resonances have special effects when an Elemental Reaction is triggered.
- Electro Resonance: Superconduct, Overloaded, and Electro-Charged will generate an Electro Elemental Particle