Toxin Damage is one of the four primary elemental damage types. It is effective against CorpusFlesh and GrineerFerrite Armor, but is less effective against Machinery and Robotic enemies as well as FossilizedInfested creatures, exacerbated by Toxic Ancients which completely nullifies Toxin damage. Against the large majority of enemies (and against Tenno) this damage bypasses shields to directly affect health, although it does not completely bypass armor.
Toxin damage's status effect is Poison, which infects an enemy with a damage over time that deals Base Damage × (Toxin Mod Multiplier ÷ 2) per tick for 9 ticks over 8 seconds as Toxin damage. Multiple instances of the effect can stack on the same target with each instance having its own timer.
Mods adding Base damage, Toxin damage, Faction damage and combo multipliers will increase the damage of the Poison ticks. If a proc occurs together with a headshot, stealth bonus, and/or critical hit, the ticks are also affected by their respective multipliers. However, innate Toxin damage from weapons such as the Paracyst does not contribute to the damage-over-time ticks. It should also be noted that due to the nature of Faction damage mods, their bonuses are applied twice during the calculation of Poison damage per tick. For example, the Poison damage per tick of a weapon with an innate 100 damage, Serration, Infected Clip, and Bane of Grineer will be:
* The codex indicates it does +25% against Proto Shield, but as the damage completely bypasses shields, the vulnerability is meaningless.
As with all damage types effective against armor, Toxin damage's type modifier works in two ways: it ignores a percentage of the target's armor, and increases the damage dealt in the same way as a type modifier against hitpoints. Practically speaking, this means that Toxin damage is only reduced by 75% of a target's whole Ferrite Armor and the base damage is increased by +25%.
Chroma unleashes a continuous stream of elemental energy in a cone 4 / 5 / 6.5 / 10 meters long that inflicts 100 / 125 / 150 / 200Heat, Electricity, Toxin, or Cold damage per second with a 40% / 45% / 50% / 60%status chance.
Damage bypasses obstacles in the environment and does not decrease with distance.
Damage type is based on Chroma's current elemental alignment which is determined by Chroma's energy color.
Cone length is affected by Ability Range, following the expression: 10 × (1 + Ability Range)1/3.
At max rank, with a maxed Narrow Minded the range would be reduced to 6.97 meters, while a maxed Overextended would instead increase it to 12.38 meters.
Spectral Scream's damage can be boosted by the Fury aspect of Vex Armor.
Spectral Scream drains 3 energy per second and will remain active as long as Chroma has energy. Spectral Scream will end if Chroma runs out of energy or if deactivated by pressing the ability key again (default 1 ).
Activation energy cost is affected by Ability Efficiency, and the channeling energy cost is affected by Ability Efficiency and Ability Duration.
This ability can come in handy when used as a form of Crowd Control and can both be used as a damage ability, or with Heat or Electricity elemental damage creating a continuous crowd control stun.
This ability can be used to resist knockdowns, making it usable for walking through corpus laser doors or shockwaves caused by MOA or death orbs.
Rolling can be used to counteract the movement speed reduction and cover a large area in a short period of time.
Having a Limbo with a high duration build on your team can be very useful, as Spectral Scream will be able to damage all enemies even while Chroma is in the rift. With a build with maximum efficiency, this will also cause Spectral Scream to cost no energy to use, while actually gaining energy at a minute rate.
Elemental Ward Depending on Chroma's elemental alignment, an offensive area-of-effect is created. Chroma and his nearby allies are imbued with defensive energy.
Chroma emits an aura that infuses himself and nearby allies with elemental energy as long as they remain within 6 / 8 / 10 / 12 meters, providing both offensive and defensive buffs. The aura lasts for 10 / 15 / 20 / 25 seconds.
Elemental Ward exhibits different effects depending on Chroma's current elemental alignment, determined by Chroma's energy color.
Heat
Generates a flame aura around Chroma and affected allies that increases base health by 50% / 75% / 100% / 200% and inflicts 25 / 50 / 75 / 100Heat damage per second within a radius of 5 meters with a 2% / 5% / 7% / 10%status chance.
The health bonus stacks additively with base health modifiers, and the amount of health gained is determined by the affected Warframe's base health at rank 0. Since Chroma has 100 health at rank 0, a rank-3 Elemental Ward with a maxed Vitality and Intensify will increase Chroma's health at rank 30 to 200 + 100 × (1 + (4.4 + 2 × 1.3)) = 1,000.
Heat status effect deals 50% of Elemental Ward's base damage per tick over 7 ticks in 6 seconds. Ignited enemies will also panic and flail around for a brief period.
Damage bypasses obstacles in the environment and decreases with distance.
Infuses Chroma and affected allies with an electric current that increases base shields by 50% / 65% / 75% / 100% and converts incoming damage into arc discharges. An arc discharge inflicts 250% / 300% / 500% / 1000% incoming damage as Electricity damage to a single target within 5 / 6 / 8 / 10 meters with a 10% / 15% / 20% / 25%status chance. Arc discharges will inflict a minimum of 50 / 60 / 100 / 200Electricity damage.
The shield bonus stacks additively with base shield modifiers, and the amount of shields gained is determined by the affected Warframe's base shields at rank 0. Since Chroma has 100 shields at rank 0, a rank-3 Elemental Ward with a maxed Redirection and Intensify will increase Chroma's shield capacity at rank 30 to 300 + 100 × (4.4 + 1 × 1.3) = 870.
Electricity status effect chains 50% of Elemental Ward's base damage to surrounding enemies in a small area of effect. Shocked enemies will also be briefly stunned.
Arc damage bypasses obstacles in the environment.
The final damage of an arc discharge is determined by the amount of shields and/or health lost by incoming damage. For example with a maxed Intensify, losing 100 shields from a single instance of damage will produce an arc that inflicts 100 × 10 × 1.3 = 1,300Electricity damage at rank 3 to a single target as long as it's within range.
Self-damage and damage from environmental hazards can also be converted into arc discharges.
Arcs can strike the same target multiple times, and arcs can be produced in quick succession should Chroma and allies receive multiple instances of damage that exceed the minimum threshold.
Emits an aura of noxious fumes around Chroma and affected allies that increases base reload speed by 15% / 25% / 30% / 35% and holster rate by 15% / 25% / 30% / 35%. Within a radius of 5 meters, the noxious fumes also have a 25% / 35% / 40% / 50% chance per second to deal 5% of an enemy's maximum health as Toxin damage with a 100%status chance.
Damage chance per second is affected by Ability Strength, while the damage is not.
Toxin status effect deals 50% of Elemental Ward's base damage per tick over 9 ticks in 8 seconds. As the base damage constitutes 5% of an enemy's maximum health, the ensuing proc will deal a total of 22.5% of the enemy's max health as Toxin damage in 9 ticks over 8 seconds, bringing the total damage to 27.5% of the enemy's max health.
The Toxin damage will only be applied to an enemy if it is not already affected by a Toxin proc, but can occur as soon as an existing Toxin proc expires. As such, its effect cannot stack with itself but can refresh itself every 9 seconds.
Damage bypasses obstacles in the environment and does not decrease with distance.
Reload speed and holster rate bonuses are affected by Ability Duration.
The amount of reload speed gained is determined by the affected weapon's base reload speed.
Encases Chroma and affected allies in a layer of frost that increases base armor by 25% / 75% / 100% / 150% and creates an ice shield that reflects incoming fire back to their source. Reflected damage is increased by 150% / 200% / 250% / 300% and has a 10% / 15% / 20% / 25%status chance.
The armor bonus stacks additively with base armor modifiers, and the amount of armor gained is determined by the affected Warframe's base armor. Since Chroma has 350 base armor, a rank-3 Elemental Ward with a maxed Steel Fiber and Intensify will increase Chroma's armor to 350 × (1 + 1.1 + 1.5 × 1.3) = 1,417.5. As with all other additive armor bonuses, Elemental Ward's bonus is applied before multiplicative armor bonuses.
Cold status effect reduces a target's movement speed and fire/attack rate by 50% over a duration of 6 seconds.
Incoming hitscan and non-hitscan projectiles are physically redirected. As such, obstacles in the environment can prevent reflected damage from hitting enemies.
Hitscan projectiles are reflected directly to the source enemy regardless of distance from Chroma. Melee attacks are not reflected.
Non-hitscan projectiles are reflected in the direction of the source enemy.
Elemental Auras of any type from two or more Chromas do not stack, i.e. two Heat auras do not increase damage nor health values, and if you had both a Heat and Cold aura, only one of them would be active on allies, the first aura stays until you move out of range or it expires.
Has a casting delay of 1 second. The animation interrupts movement and other actions.
Everlasting Ward is a Warframe Augment Mod for Chroma that allows allies to retain Elemental Ward's effects upon moving out of its range, lasting for a percentage of Elemental Ward's remaining duration.
In a pinch, the bonus Health provided by the Ward can be used as a quick heal, as the Health granted is automatically added to your remaining health and is not reduced from your remaining health when Elemental Ward wears off.
Electric
Can be used to great effect on Survival and Exterminate missions where enemies approach you from all directions and are often difficult to locate or target. At maximum Ability Strength, the damage reflected can easily finish off weaker enemies and potentially stun any survivors.
Toxin
Works very well with weapons that require you to reload frequently or have long reload times.
Can reduce recharge delay for Cycron or a Kitgun equipped with Pax Charge, however, it does not affect recharge rate.
Cold
Properly modded, a Cold-oriented Ward can provide an armor bonus high enough that can counteract the armor penalty generated when casting Effigy.
Bugs
Allies who enter, leave, then re-enter the radius of Heat-oriented Ward will not regain the buff on the same cast of Elemental Ward. This results in an empty space where the bonus health should have been, even if they took no damage at all.
This causes Medi-Ray and other healing abilities to attempt to heal the player, but if the player gets out of Elemental Ward's range, their health will return to normal again, wasting the health restored in the process.
Chroma sheds his outer pelt, imbuing it with elemental energy to sprout wings and converting it into a stationary floating sentry with 1000 / 2000 / 4000 / 8000health. The sentry will attack all enemies within 20 meters with a continuous stream of elemental energy, dealing 100 / 200 / 300 / 400Heat, Electric, Toxin, or Cold damage per tick. The sentry is capable of unleashing a radial attack that inflicts 200Heat, Electric, Toxin, or Cold damage to enemies within 5 meters. The sentry can also unleash a radial roar to temporarily stun enemies within 30 meters.
Sentry health and continuous damage are affected by Ability Strength, while the radial attack damage is not.
Effigy's elemental breath attack does 5 ticks of damage within 1 second making the base damage per second 2000.
Damage type is based on Chroma's current elemental alignment, determined by Chroma's energy color.
Heat status effect deals 50% of Effigy's base damage per tick over 7 ticks in 6 seconds. Ignited enemies will also panic and flail around for a brief period.
Electricity status effect chains 50% of Effigy's base damage to surrounding enemies in a small area of effect. Shocked enemies will also be briefly stunned.
Toxin status effect deals 50% of Effigy's base damage per tick over 9 ticks in 8 seconds. Toxin damage bypasses shields and is able to directly affect health. Multiple instances of the Toxin DoT stack on the same target for increased damage over time.
Cold status effect reduces a target's movement speed and fire/attack rate by 50% over a duration of 6 seconds.
Enemies affected by the close-range radial attack are ragdolled.
Sentry attack range, stun radius, and knockback radius are not affected by Ability Range.
Enemies killed by the sentry have a 15% / 30% / 45% / 60% chance to drop additional credits.
All Credits that drop within 10 meters of the sentry yield 25% / 50% / 75% / 100% additional credits.
The range is not affected by mods.
Technically increases credits income by 3.75% / 15% / 33.75% / 60% while the Sentry is active.
Credit chance and credit bonus are not affected by Ability Strength.
While Effigy is active, Chroma can fight in his lightened form, gaining 20% movement speed but with a 50% armor reduction.
Speed bonus and armor reduction are not affected by Ability Strength.
The armor reduction is a multiplicative penalty that's applied to Chroma's total armor (e.g., with a maxed Steel Fiber and Intensify, Chroma with Vex Armor at full capacity will have his armor lowered to 350 × (1 + 1.1 + 3.5 × 1.3) × 0.5 = 1,163.75 when Effigy is activated).
Effigy drains 10 energy per second while active, and will deactivate if Chroma runs out of energy, sentry health is depleted, or if manually deactivated by pressing the ability key again (default 4 ).
When deactivated, Chroma can teleport his pelt from anywhere onto himself. This will stop movement and interrupt any action Chroma is doing, such as reloading, leaving a player vulnerable.
When deactivated while sliding, Chroma's pelt will be reapplied to him without triggering the animation, even if the player immediately cancels his slide.
Both the initial cast and the return of Chroma's pelt will cease any actions as they are a two-handed ability.
Guided Effigy is a Warframe Augment Mod for Chroma's Effigy that allows him to control the Effigy, dealing rapid damage to enemies in its path and stunning enemies at the destination.
The sentry usually unleashes its roar a few seconds after deploying. This allows you to quickly deploy the sentry for a temporary stun to all nearby enemies.
The pelt can be Banished, preventing damage from non-banished enemies while still being able to damage all enemies normally.
The pelt gains shields from the Shield Osprey Eximus Specter.
Misc:1.5 / 2 / 3 / 3 s (invuln. time) 400 (decoy shields) 100% (Toxin status chance)
Info
Saryn sheds her skin, removing all existing status effects and increasing her movement speed by 1.3 / 1.35 / 1.4 / 1.5 x for 3.5 / 4 / 4.5 / 5 seconds, while leaving behind a decoy with 400shields and 150 / 300 / 400 / 500health that draws enemy fire for 14 / 24 / 32 / 40 seconds. When deployed, the decoy is invulnerable for a period of 1.5 / 2 / 3 / 3 seconds, during which all incoming damage absorbed by it is converted and added to its health. The decoy will explode if it loses all of its hitpoints, if its duration expires or if the ability is cast again, inflicting 240 / 300 / 350 / 400Toxin damage with 100%Toxinstatus chance to all enemies within 5 / 6 / 7 / 10 meters from it.
Decoy's health, explosion damage, and Saryn's speed multiplier, are all affected by Ability Strength.
Explosion damage does not bypass obstacles in the environment and diminishes with distance.
Decoy's lifespan and speed buff duration are affected by Ability Duration, while the invulnerability period is not
Molt's decoy is placed at Saryn's current position, mirroring her pose and elevation.
Molt's shields regenerate over time and can be buffed with the use of allied Shield Ospreys, whether in Specter or Mind Controlled forms.
Elemental augment mods, such as Ember's Fireball Frenzy, can be applied to Molt. The damage augment will not affect the explosion damage or damage type upon Molt's expiration.
Molt cannot be knocked down or moved, and acts as a physical object, unlike Loki's Decoy.
Molt will slowly vaporize and dissipate for its duration, eventually exploding once it nearly vanishes.
Casting Molt can be done while performing any action without interrupting it, including reloading, charging, shooting, maneuvering, and while on a zipline.
Can be cast in all states (except while upside down in a flip jump or while dodging) and can be reused instantly.
Using during a well timed jump can result it being low enough for enemies to target, such as Infested or Melee units, but be more protected from most melee attacks. (Ancients will still be able to reach, as well as the knockback damage from Leapers).
Place Molt in locations which can protect it from enemy attacks to maximize its survival.
If Molt is closer to the enemy than the player, enemies will (normally) focus it. Applies to the caster as well as other players, unless the use aggro increasing abilities such as Nyx's Absorb or Rhino's Iron Skin.
It can be used as protection from enemy fire, when you revive an downed teammate.
Bugs
When knocked back by an Ancient, the physical target of the decoy will move, but the model remains in place. This can be seen while having Enemy Sense and Enemy Radar equipped while seeing the decoy (as a friendly blip) against a group of infested.
For clients, Molt will sometimes be in a default standing position when deployed.
Toxic Lash While active, attacks deal additional Toxin damage; this effect is doubled for melee strikes. Instantly burst spores when attacking afflicted enemies.
Misc:100% (Toxin status chance) 100% (Spores burst chance)
Info
Saryn imbues all her weapons with potent toxins for 20 / 25 / 35 / 45 seconds, adding 20% / 24% / 26% / 30% of the weapon's total damage as Toxin damage (doubled for melee weapons), with 100%Toxinstatus chance on every strike.
Toxic Lash adds damage to every weapon attack calculated from Saryn's total weapon damage before damage resistances are applied. (e.g., with a maxed Intensify and a weapon that inflicts 300 total damage before damage resistances are factored, a rank-3 Toxic Lash will add 300 × 0.3 × 1.3 = 117Toxin damage to each strike).
The gas cloud from a Gas proc will cause a second Toxin proc from Toxic Lash.
The explosion from mods like Acid Shells will proc Toxin while Toxic Lash is active.
The additional Toxin damage is a separate instance of damage and does not combine with elemental damage on the weapon.
Saryn is immune to crowd control during the cast animation.
Casting Toxic Lash is a one-handed action that can be done while performing many actions without interrupting them, including reloading, charging, shooting, maneuvering, and while on a zipline.
Can be recast to refresh its duration.
Ability Synergy: Toxic Lash can make Spores burst with every attack, even without direct hits.
Contagion Cloud is a Warframe Augment Mod for Saryn that causes kills made with Toxic Lash, and damage over time effects generated by it, to leave behind a poisonous cloud that deals Toxin damage over time to enemies within it. Melee kills double the damage dealt by the cloud.
The percentage of Toxin damage granted is multiplied by Ability Strength.
The exact amount of Toxin damage is equal to the percentage multiplied by the weapon's total damage.
Toxic Lash is an invaluable ability for players who were not able to collect a Melee Toxin mod or not capable of equipping such on Melee weapons, in which the ability becomes a suitable replacement for those in need of direct health damage.
Using a hammer with the Shattering Storm stance equipped will make it easy to pop Spores while Toxic Lash is active, due to the ground slam attacks of the stance's combos.
While Toxic Lash doesn't increase the damage over time effect of gas status effects, it does affect its initial damage, dealing separate toxin damage to all enemies affected by gas status effects, and applying separate instances of toxin damage over time to them.
Toxic Lash's bonus damage also applies to secondary damage from augment mods, like AoE from Acid Shells and Vulcan Blitz.
Toxin Damage is one of the four primary elemental damage types. It is effective against 
Corpus Flesh and 
Grineer Ferrite Armor, but is less effective against Machinery and Robotic enemies as well as Fossilized 
Infested creatures, exacerbated by Toxic Ancients which completely nullifies 
Edit
Paracyst does not contribute to the damage-over-time ticks. It should also be noted that due to the nature of Faction damage mods, their bonuses are applied twice during the calculation of Poison damage per tick. For example, the Poison damage per tick of a weapon with an innate 100 damage, 
Serration, 
Toxin status chance)
Impact • 
Puncture • 
Slash
Cold • 
Electricity • 
Heat • 
Blast • 
Corrosive • 
Gas • 
Magnetic • 
Radiation • 
Viral
Tau • 
True • 
Void
