Viper Strike

Attack, Duration, Melee, Strike, Chaos

Level: (1–20)

Cost: (6–10) Mana

Effectiveness of Added Damage: (155–442)%

Requires Level (1–70), (10–155) Dex

Requires Claws, Daggers, One Hand Swords, Thrusting One Hand Swords, Two Hand Swords, Rune Daggers

Hits enemies, converting some of your physical damage to chaos damage and inflicting poison which will be affected by modifiers to skill duration. If dual wielding, will strike with both weapons. Requires a claw, dagger or sword.

30% less Attack Speed if Dual Wielding
Each Weapon Hits separately if Dual Wielding, dealing 20% less Damage
Base duration is 4 seconds
60% of Physical Damage Converted to Chaos Damage
60% chance to Poison on Hit

Additional Effects From Quality:

Base duration is (0–1) seconds

Place into an item socket of the right colour to gain this skill. Right click to remove from a socket.

Quest /2 ⍟

Act	Quest	NPC	Character
1	The Twilight Strand		Shadow
1	Enemy at the Gate	Nessa	Duelist · Ranger · Scion · Shadow

Genus

Viper Strike

Viper Strike of the Mamba

Viper Strike /6 ⍟

A melee single target attack skill that converts 25% of physical damage to chaos damage and has a high chance to poison the targeted enemy.

Name	Show Full Descriptions
Melee Splash Support	Allows your Viper Strike hits to deal splash damage to nearby targets. Pairing this support with the Ancestral Call support will result in large areas of overlapping damage.
Ancestral Call Support	Allows Viper Strike to target two additional nearby enemies. Pairing this support with the Melee Splash support will result in large areas of overlapping damage.
Deadly Ailments Support	Reduces hit damage in exchange for more ailment damage. This allows the poison inflicted by Viper Strike to deal far more damage over time.
Melee Physical Damage Support	Grants more melee physical damage for Viper Strike. This support also increases the amount of damage inflicted bleeds and poisons do.
Multistrike Support	Causes Viper Strike to repeat an additional two times, as well as providing a large bonus to attack speed.
Vile Toxins Support	Increases the damage of poisons applied from Viper Strike. In addition your Viper Strikes hits gain 5% more damage per poison on the enemy.

Level Effect /40

Implicit
60% of Physical Damage Converted to Chaos Damage 60% chance to Poison on Hit Base duration is 4 seconds Each Weapon Hits separately if Dual Wielding, dealing 20% less Damage 30% less Attack Speed if Dual Wielding (Poison deals Chaos Damage over time, based on the base Physical and Chaos Damage of the Skill. Multiple instances of Poison stack)

Level	Requires Level	Dex	Cost	Base Damage	Experience
1	1	10	6	155.3%	70
2	2	12	6	163.3%	308
3	4	16	6	172.2%	1,554
4	7	22	6	181.7%	6,667
5	11	31	6	192.2%	26,047
6	16	41	7	203.6%	49,725
7	20	50	7	215.3%	95,714
8	24	58	7	227.8%	169,595
9	28	67	7	240.9%	283,759
10	32	75	8	254.6%	453,996
11	36	83	8	269.3%	703,128
12	40	92	8	284.7%	1,061,223
13	44	100	8	301%	2,065,870
14	48	109	9	318.2%	2,507,110
15	52	117	9	336.4%	5,798,936
16	56	125	9	355.6%	15,083,919
17	60	134	9	375.9%	27,792,735
18	64	142	10	397.3%	43,869,739
19	67	148	10	419.2%	242,081,556
20	70	155	10	442.4%
21	72		10	466%
22	74		10	490.9%
23	76		10	517.1%
24	78		11	544.8%
25	80		11	573.9%
26	82		11	604.5%
27	84		11	636.8%
28	86		11	670.7%
29	88		11	706.6%
30	90		11	744.2%
31	91		11	802.3%
32	92		11	823.6%
33	93		12	845.6%
34	94		12	868%
35	95		12	891.2%
36	96		12	914.9%
37	97		12	939.3%
38	98		12	964.2%
39	99		12	989.9%
40	100		12	1016.2%

Attribute /9

Key	Value
Cost	iLvl 1: Normal: 1xScroll of Wisdom
Acronym	Hit, Weapon, Poison
BaseType	Viper Strike
Class	Skill Gems
Weapon	Claws, Daggers, One Hand Swords, Thrusting One Hand Swords, Two Hand Swords, Rune Daggers
TargetTypes	Ground, Enemy
Type	Attack, Duration, Multistrikeable, Melee, MeleeSingleTarget, DamageOverTime, Chaos
ItemType	Metadata/Items/Gems/SkillGemViperStrike
Reference	poe.ninja, Community Wiki

Crucible Weapon /2

Weight	Desc
1000 (T5)	Viper Strike and Pestilent Strike deal 25% increased Attack Damage per Frenzy Charge
1000 (T5)	Viper Strike and Pestilent Strike deal 40% increased Attack Damage per Frenzy Charge

Viper Strike Monster /56 ⍟

Name	Modifiers	Spectre
Wolfpack Guard	20% Chance to Block Attack Damage You take 10% of Damage from Blocked Hits	Y
Venomous Spawn		Y
Black Death		Y
Deathly Vision		Y
Lurking Venom		Y
Nesting Venom		Y
Noxious Tarantula		Y
Deadly Tarantula		Y
Virulent Spider		Y
Corrupted Arach		Y
Crypt Spinner		Y
Crypt Weaver		Y
Mutant Arach		Y
Crypt Ambusher		Y
Adolescent Arachnid	monster no map drops [1]	Y
Mature Arachnid	monster no map drops [1]	Y
Essence Tarantula		Y
Widow's Hatchling	monster no drops or experience [1]	Y
Plague Retch	4% of Maximum Life taken per second as Chaos Damage monster casts viper strike text [1]	Y
Alal the Terrifying	50% of Physical Damage Converted to Chaos Damage	Y
The Fallen Queen	Monsters grant 100% increased Experience 15000% increased Rarity of Items Dropped cannot be stunned for ms after stun finished [2000] cannot be stunned while stunned [1]	Y
Crypt Arachnid		Y
Plaguebringer	4% of Maximum Life taken per second as Chaos Damage monster casts viper strike text [1] Monsters grant 100% increased Experience 15000% increased Rarity of Items Dropped cannot be stunned for ms after stun finished [2000] cannot be stunned while stunned [1]	Y
Thena Moga	monster base type attack cast speed +% and damage -% final [33] 40% Chance to Block Attack Damage You take 20% of Damage from Blocked Hits	Y
Thena Moga	monster base type attack cast speed +% and damage -% final [33] 40% Chance to Block Attack Damage You take 20% of Damage from Blocked Hits 100% increased maximum Life 100% increased Area of Effect 80% increased Character Size	Y
Ion Darkshroud	monster base type attack cast speed +% and damage -% final [33]	Y
Ion Darkshroud	monster base type attack cast speed +% and damage -% final [33] 100% increased maximum Life 100% increased Area of Effect 80% increased Character Size	Y
Scourge of the Wilds	monster base type attack cast speed +% and damage -% final [33] monster casts viper strike text [1] display monster causes ground desecration [1] display monster casts wither [1] monster no map drops [1]	Y
Cintiq, the Inescapable	% increased Rarity of Items Dropped monster additional quantity of dropped items in cruel +% [500] monster additional quantity of dropped items in merciless +% [1000] monster additional rarity of dropped items in cruel +% [750] monster additional rarity of dropped items in merciless +% [1500] display monster uses far shot text [0] monster reverse point blank damage -% at minimum range [30] monster penalty against minions damage +% final vs player minions [-30] monster no map drops [1]	Y
Cintiq, the Inescapable	% increased Rarity of Items Dropped monster additional quantity of dropped items in cruel +% [500] monster additional quantity of dropped items in merciless +% [1000] monster additional rarity of dropped items in cruel +% [750] monster additional rarity of dropped items in merciless +% [1500] display monster uses far shot text [0] monster reverse point blank damage -% at minimum range [30] monster penalty against minions damage +% final vs player minions [-30] monster no map drops [1] monster is invasion boss [1]	Y
Pewterfang	300% increased Quantity of Items Dropped 800% increased Rarity of Items Dropped monster no map drops [1] monster is invasion boss [1]	Y
The Walking Waste	4% of Maximum Life taken per second as Chaos Damage monster casts viper strike text [1] 300% increased Quantity of Items Dropped 800% increased Rarity of Items Dropped monster no map drops [1] monster is invasion boss [1]	Y
Corrupted Tarantula	monster no map drops [1]	Y
Sickly Spinner	monster no map drops [1]	Y
Crawling Infestation	monster no drops or experience [1] monster no map drops [1]	Y
Putrid Weaver	monster no map drops [1]	Y
Mutated Arachnid	monster no map drops [1]	Y
Rotting Weaver	Melee Strike Skills deal Splash Damage to surrounding targets monster no map drops [1]	Y
Rooster Fiend	monster casts viper strike text [1]	Y
Talon Demon	monster do not fracture [1]	Y
Unbound Arachnid	monster casts viper strike text [1] monster no map drops [1]	Y
Unbound Arachnid	monster casts viper strike text [1] emerge speed +% [-30,30] monster no map drops [1]	Y
Echo of the Verdant	Gain 25% of Physical Damage as Extra Lightning Damage	Y
Poisonous Parasite		Y
Shaped Rooster Demon	monster casts viper strike text [1] monster no drops or experience [1]	Y
Shaped Noxious Tarantula	monster no drops or experience [1]	Y
Spider Minion	Phasing suppress phasing visual [1]	Y
Arakaali's Horror		Y
Rooster Fiend		Y
Blighted Tarantula	Ignores Summoning Towers monster casts viper strike text [1]	Y
Blighted Virulent Spider	Ignores Summoning Towers	Y
Blighted Fowl	monster casts viper strike text [1]	Y
Effigy of Venom	display monster uses far shot text [0] monster reverse point blank damage -% at minimum range [30] monster penalty against minions damage +% final vs player minions [-30]	Y
Imperfect Spider Matriarch		Y
Spider Matriarch		Y
Perfect Spider Matriarch		Y

Supported By /108 ⍟

Active Type: Attack, Duration, Multistrikeable, Melee, MeleeSingleTarget, DamageOverTime, Chaos

Icon	Name
Added Fire Damage Support	Added Fire Damage Support Supports any skill that hits enemies.
Faster Attacks Support	Faster Attacks Support Supports attack skills.
Added Cold Damage Support	Added Cold Damage Support Supports any skill that hits enemies.
Additional Accuracy Support	Additional Accuracy Support Supports attack skills.
Added Lightning Damage Support	Added Lightning Damage Support Supports any skill that hits enemies.
Increased Critical Strikes Support	Increased Critical Strikes Support Supports any skill that hits enemies.
Increased Critical Damage Support	Increased Critical Damage Support Supports any skill that hits enemies.
Knockback Support	Knockback Support Supports any skill that hits enemies.
Life Leech Support	Life Leech Support Supports any skill that hits enemies, causing those hits to leech life based on damage dealt.
Mana Leech Support	Mana Leech Support Supports attack skills that hit enemies, causing those hits to leech mana based on damage dealt.
Added Chaos Damage Support	Added Chaos Damage Support Supports any skill that hits enemies.
Stun Support	Stun Support Supports any skill that hits enemies, making it easier to stun enemies with those skills.
Melee Physical Damage Support	Melee Physical Damage Support Supports melee attack skills.
Item Rarity Support	Item Rarity Support Supports any skill that can kill enemies.
More Duration Support	More Duration Support Supports any skill with a duration.
Cold to Fire Support	Cold to Fire Support Supports any skill that hits enemies.
Combustion Support	Combustion Support Supports any skill that hits enemies.
Elemental Damage with Attacks Support	Elemental Damage with Attacks Support Supports attack skills.
Bloodlust Support	Bloodlust Support Supports melee attack skills, causing them to deal more damage against bleeding enemies, but preventing those skills from inflicting bleeding on enemies in any way.
Life Gain on Hit Support	Life Gain on Hit Support Supports attack skills.
Elemental Proliferation Support	Elemental Proliferation Support Supports any skill that hits enemies, or could otherwise apply elemental ailments.
Culling Strike Support	Culling Strike Support Supports any skill that hits enemies. If enemies are left below 10% of maximum life after being hit by these skills, they will be killed.
Damage on Full Life Support	Damage on Full Life Support Supports attack skills, providing a bonus to all damage dealt by those skills while your life is full.
Chance to Flee Support	Chance to Flee Support Supports any skill that hits enemies.
Blind Support	Blind Support Supports any skill that hits enemies.
Fire Penetration Support	Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
Cold Penetration Support	Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
Lightning Penetration Support	Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
Elemental Penetration Support	Elemental Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy elemental resistances.
Multistrike Support	Multistrike Support Supports melee attack skills, making them repeat twice when used, targeting a random enemy each time. Cannot support Vaal skills, channelling skills, travel skills, retaliation skills or triggered skills.
Melee Splash Support	Melee Splash Support Supports melee strike skills, causing their melee strike to deal splash damage around each target hit.
Power Charge On Critical Support	Power Charge On Critical Support Supports any skill that hits enemies.
Burning Damage Support	Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
Hextouch Support	Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
Cast On Critical Strike Support	Cast On Critical Strike Support Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
Cast on Melee Kill Support	Cast on Melee Kill Support Must support both a melee attack skill and a spell skill to work. The attack skill will trigger a spell when it kills an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
Endurance Charge on Melee Stun Support	Endurance Charge on Melee Stun Support Supports melee attack skills.
Less Duration Support	Less Duration Support Supports any skill that has a duration.
Block Chance Reduction Support	Block Chance Reduction Support Supports any skill that hits enemies.
Physical to Lightning Support	Physical to Lightning Support Supports any skill that hits enemies.
Fortify Support	Fortify Support Supports melee attack skills that are not triggered.
Ice Bite Support	Ice Bite Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
Hypothermia Support	Hypothermia Support Supports any skill that deals damage.
Innervate Support	Innervate Support Supports any skill you use to hit enemies yourself. Cannot support skills used by totems, traps, or mines.
Critical Strike Affliction Support	Critical Strike Affliction Support Supports any skill that hits enemies.
Void Manipulation Support	Void Manipulation Support Supports any skill that deals damage.
Controlled Destruction Support	Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
Swift Affliction Support	Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
Elemental Focus Support	Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
Ignite Proliferation Support	Ignite Proliferation Support Supports any skill that hits enemies.
Chance to Bleed Support	Chance to Bleed Support Supports attack skills.
Chance to Poison Support	Chance to Poison Support Supports any skill that hits enemies.
Deadly Ailments Support	Deadly Ailments Support Supports any skill that hits enemies.
Decay Support	Decay Support Supports any skill that hits enemies.
Efficacy Support	Efficacy Support Supports any skill that deals damage or has a duration.
Vile Toxins Support	Vile Toxins Support Supports any skill that hits enemies.
Maim Support	Maim Support Supports attack skills, or other skills that can maim enemies.
Immolate Support	Immolate Support Supports any skill that hits enemies.
Unbound Ailments Support	Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
Brutality Support	Brutality Support Supports any skill that deals damage.
Ruthless Support	Ruthless Support Supports melee strike or slam skills. Every third time you use a supported attack, that use of the skill will be more powerful.
Momentum Support	Momentum Support Supports attack skills that aren't triggered.
Ancestral Call Support	Ancestral Call Support Supports melee strike skills, causing them to also strike at extra targets simultaneously. The extra targets must be a minimum distance from the user. If supporting a minion attack skill, the minion's skills will not also strike extra targets. Cannot support Vaal skills or triggered skills.
Summon Phantasm Support	Summon Phantasm Support Supports skills that can hit enemies, or create minions. When those skills or minions kill enemies, or hit rare or unique enemies they will have a chance to summon a Phantasm minion, which uses a piercing projectile spell that deals physical damage.
Withering Touch Support	Withering Touch Support Supports attack skills.
Bonechill Support	Bonechill Support Supports any skill that can chill enemies or create chilling areas.
Energy Leech Support	Energy Leech Support Supports any skill that hits enemies, causing those hits to leech energy shield based on damage dealt.
Close Combat Support	Close Combat Support Supports melee attack skills. Cannot support skills which create minions.
Shockwave Support	Shockwave Support Supports melee attack skills. Cannot support triggered attacks, attacks used by things other than you, or skills which create minions.
Impale Support	Impale Support Supports attack skills.
Pulverise Support	Pulverise Support Supports melee attack skills.
Rage Support	Rage Support Supports melee attack skills. Minions cannot gain rage.
Nightblade Support	Nightblade Support Supports attack skills. Cannot support skills which create minions.
Awakened Added Fire Damage Support	Awakened Added Fire Damage Support Supports any skill that hits enemies.
Awakened Ancestral Call Support	Awakened Ancestral Call Support Supports melee strike skills, causing them to also strike at extra targets simultaneously. The extra targets must be a minimum distance from the user. If supporting a minion attack skill, the minion's skills will not also strike extra targets. Cannot support Vaal skills or triggered skills.
Awakened Brutality Support	Awakened Brutality Support Supports any skill that deals damage.
Awakened Burning Damage Support	Awakened Burning Damage Support Supports any skill that hits enemies, or can deal burning damage directly.
Awakened Elemental Damage with Attacks Support	Awakened Elemental Damage with Attacks Support Supports attack skills.
Awakened Fire Penetration Support	Awakened Fire Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy fire resistance.
Awakened Melee Physical Damage Support	Awakened Melee Physical Damage Support Supports melee attack skills.
Awakened Melee Splash Support	Awakened Melee Splash Support Supports melee strike skills, causing their melee strike to deal splash damage around each target hit.
Awakened Multistrike Support	Awakened Multistrike Support Supports melee attack skills, making them repeat three times when used, targeting a random enemy each time. Cannot support Vaal skills, channelling skills, travel skills, retaliation skills or triggered skills.
Awakened Added Cold Damage Support	Awakened Added Cold Damage Support Supports any skill that hits enemies.
Awakened Cast On Critical Strike Support	Awakened Cast On Critical Strike Support Must support both an attack skill and a spell skill to work. The attack skill will trigger a spell when it critically strikes an enemy. Cannot support totems, traps, or mines. Vaal skills, channelling skills, and skills with a reservation cannot be triggered.
Awakened Cold Penetration Support	Awakened Cold Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy cold resistance.
Awakened Deadly Ailments Support	Awakened Deadly Ailments Support Supports any skill that hits enemies.
Awakened Swift Affliction Support	Awakened Swift Affliction Support Supports any skill that has a duration, or can hit enemies to inflict ailments on them.
Awakened Void Manipulation Support	Awakened Void Manipulation Support Supports any skill that deals damage.
Awakened Added Chaos Damage Support	Awakened Added Chaos Damage Support Supports any skill that hits enemies.
Awakened Added Lightning Damage Support	Awakened Added Lightning Damage Support Supports any skill that hits enemies.
Awakened Controlled Destruction Support	Awakened Controlled Destruction Support Supports attack skills, or spell skills that deal damage.
Awakened Hextouch Support	Awakened Hextouch Support Must support both a skill that hits enemies, and a hex curse skill to work. The hex will be applied when enemies are hit by the other skill. Cannot support totems, traps, or mines. Minions cannot apply hexes this way.
Awakened Elemental Focus Support	Awakened Elemental Focus Support Supports any skill that hits or burns enemies, or inflicts elemental ailments.
Awakened Lightning Penetration Support	Awakened Lightning Penetration Support Supports any skill that hits enemies, making those hits penetrate enemy lightning resistance.
Awakened Unbound Ailments Support	Awakened Unbound Ailments Support Supports any skill that hits enemies or inflicts ailments
Trinity Support	Trinity Support Supports skills that hit enemies, causing them to gain bonuses while you have resonance of all three elements, and to grant resonance of elements other than the highest one in a hit. There is a maximum of 50 Resonance for each Element. Cannot support triggered skills, instant skills, orb skills, brands, skills with a reservation, or skills used by totems, traps, or mines. Cannot modify the skills of minions.
Bloodthirst Support	Bloodthirst Support Supports attack skills. Cannot support triggered skills, skills which create minions, or skills used by totems, traps or mines.
Cruelty Support	Cruelty Support Supports any skill that hits enemies. Minions cannot gain Cruelty.
Behead Support	Behead Support Supports strike skills.
Overcharge Support	Overcharge Support Supports any skill that hits enemies.
Prismatic Burst Support	Prismatic Burst Support Supports attacks, causing them to trigger the Prismatic Burst spell. Cannot support triggered attacks or attacks used by things other than you. Cannot modify the skills of minions.
Trauma Support	Trauma Support Supports melee strike skills that do not inherently apply Trauma. Cannot support triggered skills, Vaal skills, or skills used by things other than you. Cannot modify the skills of minions.
Devour Support	Devour Support Supports any skill that hits enemies.
Sadism Support	Sadism Support Supports any skill that hits enemies.
Controlled Blaze Support	Controlled Blaze Support Supports melee attack skills.
Volatility Support	Volatility Support Supports attack skills.
Overexertion Support	Overexertion Support Supports melee attack skills which can be exerted. Cannot modify the skills of minions. Vaal skills and channelling skills cannot be exerted.
Rupture Support	Rupture Support Supports attack skills.

Viper Strike Unique /1 ⍟

Growing Agony Viridian Jewel

(8–12)% increased Damage over Time
With at least 40 Dexterity in Radius, Viper Strike deals 2% increased Damage with Hits and Poison for each Poison on the Enemy
With at least 40 Dexterity in Radius, Viper Strike has a 10% chance per Poison on Enemy to grant Unholy Might for 4 seconds on Hit

Community Wiki

Edit

Viper Strike

Viper Strike is a claw / dagger / sword melee strike attack skill. It hits the enemy, converting physical damage to chaos damage, and applies poison, dealing chaos damage over time based on the combined physical and chaos damage dealt. It uses both weapons to deal damage if you are dual wielding.

Skill functions and interactions

Viper Strike applies poison with a 4-second duration on hit. Viper Strike specifically overrides the base poison duration with its own base skill duration. Increased Duration Support, Less Duration Support, Unbound Ailments Support and Swift Affliction Support all affect the duration of that poison.

Some beneficial curses and auras for Viper Strike include Despair, Temporal Chains and Malevolence.

Viper Strike is a Strike attack, thus:

Multistrike Support allows to automatically target nearby enemies for two additional strikes. Note that even though this support gem lessens attack damage, poison does not scale from attack damage modifiers.
Melee Splash Supportcauses Viper Strike to hit enemies around the initial target, poisoning each.
Ancestral Call Support , Strike Skills target an additional nearby Enemy prefix modifier on hunter-influenced gloves, and annointable passive Tribal Fury all work with Viper Strike.

Version history

Version	Changes
3.17.0	Viper Strike now deals 90% of base Attack Damage at gem level 1 (unchanged), up to 154% at gem level 20 (previously 135%). Now has 90% Effectiveness of Added Damage at gem level 1 (unchanged), up to 154% at gem level 20 (previously 135%).
3.16.0	The following Strike\|Skills no longer have “+0-2 to Melee Strike Range”: Dominating Blow, Double Strike, Vaal Double Strike, Dual Strike, Elemental Hit, Frenzy, Infernal Blow, Pestilent Strike, Puncture, Riposte, Static Strike, Smite, Viper Strike, and Wild Strike.
3.13.0	Now converts 60% of physical damage to chaos damage (from 50%).
3.12.0	Now has alternative gem quality.
3.8.0	Now deals 90% of base damage at gem level 1 (from 80%), up to 135% at gem level 20 (from 130%). Now uses both weapons if you attack while Dual Wielding, but has 30% less Attack Speed if Dual Wielding. Each weapon now hits separately if Dual Wielding, dealing 20% less Damage.
3.7.0	Now deals base damage equal to, and has an added damage effectiveness of, 80% at gem level 1 (from 115%), up to 130% at gem level 20 (from 142%). Now converts 50% of physical damage to chaos (from 25%). Now adds 5 to 7 chaos damage to attacks at gem level 1, up to 169 to 254 at gem level 20. Now gains 0.5% increased attack speed and 0.5% increased poison duration per 1% gem quality (previously just 0.5% increased attack speed per 1% gem quality).
3.4.0	Now gain additional melee weapon range every 7 levels, up to +2 at level 20 (and +3 at level 21)
2.4.0	11% more damage at gem level 20.
2.1.0	Attack skills that have their damage based on the wielded weapon have their mana costs fixed in place from level 1 onwards. Viper Strike now applies poison on hit and has a 100% chance to do so. Viper Strike now has 25% of its physical damage converted to chaos (instead of 10% physical added as chaos). Poisons applied by Viper Strike have a base duration of 8 seconds (up from 7 seconds). The Base Damage of Viper Strike has been increased from 100% to 130% at level 1, and from 122.8% to 160.4% at level 20.
1.2.0	This skill now adds 10% of physical damage as Chaos Damage and has a 50% chance to deal 175% of the attack's damage as chaos damage over seven seconds. The effect duration won't be refreshed by new attacks, but there is no limit to how many Viper Strike debuffs an enemy can have.
1.0.3	Damage progression has been increased. It is now around 15% better at level 15 than it was in 1.0.2.
1.0.2b	Fixed a bug where area damage bonuses would not benefit Viper Strike when supported by Melee Splash.
1.0.2	Generic modifiers to damage dealt will now apply to damage over time that your character causes. Damage over time is not spell damage, nor attack damage, so modifiers specific to those types will not apply. Non-specific "increased damage" modifiers will apply to damage over time. Type-specific modifiers will apply as well. For example, "increased fire damage" modifiers will apply to fire damage over time. Viper Strike can be supported by Melee Splash, now that the damage penalty also applies.
0.9.13	Viper Strike is now 38% better at level 1 and 3% better at level 15.
0.9.12qq	From 0.35% attack speed per quality point to 0.5%.
0.9.12d	Fixed a server crash that could occur with Viper Strike.
0.9.5	Fixed Viper Strike so that damage from the degeneration is scaled properly for PvP.
0.9.4	Increased the damage.
0.9.2	Viper Strike does more damage at higher levels than before. Reduced maximum number of charges to 4.
0.9.1	Reduced Viper Strike duration at lower levels.
0.8.7	Viper Strike added to the game.

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