Viper

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[e][h]Viper

Dire Hero

Attributes

21 +2.4

21 +2.5

17 +2.0

27 - 29

-2

275

Base Stats

Base HP Regen

0

Base Mana Regen

0

Sight Range

1800 / 800

Attack Range

575

Missile Speed

1200

Attack Duration

0.33 + 1

Cast Duration

0.3 + 0.51

Base Attack Speed

120

Base Attack Time

1.7

Base Magic Resist

25%

Turn Rate

0.5

Level Changes

Level

1

15

25

Health

578

1172

1604

Mana

279

615

855

Armor

2.2

9.2

14.2

Damage

48-50

83-85

108-110

Most Played As

LessMore

Role

1

2

3

4

5

Viper, the Netherdrake

Recommended Roles

Carry Durable Initiator Disabler

The malevolent familiar of a sadistic wizard who captured and hoped to tame him, Viper was curiously glad to have been sprung from the sealed and unchanging subterranean Nether Reaches where his race had lived for millions of years, after tectonic slippage had sealed off the Netherdrakes in luminous caverns. Viper spent some time appearing to submit to the wizard's enchainments, hoping to learn what he could of the dark magics the mage practiced. But he soon realized that few spells were as deadly as the toxins that were his birthright. Exuding an acid that swiftly ate away the bars of his cage, the Netherdrake slipped free of his confines, spit poison in the old spellcaster's eyes, and soared out to let the world know that it had a new master.

Abilities

Poison Attack

QC

Targeting
Unit Target
Autocast

Affects
Enemy Units

Damage Type
Magical

Intensifies Viper's venom, adding an effect to his normal attack that applies a stacking movement speed slow and magic resistance deduction while dealing damage over time. Stacks up to 5 times.

Damage Per Second	4/8/12/16

Movement Speed Slow	6%/8%/10%/12%

Magic Resistance Deduction	3%/5%/7%/9%

Duration	4

Cast Range	600/640/680/720

Max Stacks	5 8

Affects	Buildings 25

Armor Reduction Per Stack	1.5

0

25

	Poison Attacks now also lower armor, increases max stacks.
	Does not pierce Spell Immunity.
	Dispellable.

The Netherdrake's inborn toxic breath quickly drains the vitality of its afflicted.

Nethertoxin

WR

Targeting
Point Target

Affects
Enemy Units

Damage Type
Magical

Viper releases a Nethertoxin at the targeted area. Units in that area take an increasing damage over time based on how long they remain in it, and have their passives broken.

Min Damage Per Second	15/20/25/30

Max Damage Per Second	80/100/120/140

Radius	400

Duration	8

Cast Range	900

Applies	Break

14
     3

25

85

	Does not pierce Spell Immunity.

Poison from the Nether Reaches turns wounds into fatalities, and fatigue into death.

Notes

• Total damage:
  • 390/520/650/780
• The projectile moves at 2000 speed.
• Effects only apply to enemies in the area. Effect lingers for 0.5 seconds when leaving the area.
• Requires 4 seconds to reach maximum DPS. Damage Interval: 0.5
• AOE damage dosen't longer stacks with itself.

Corrosive Skin

EE

Targeting
Passive

Affects
Enemy Units

Damage Type
Magical

Viper exudes an infectious toxin that damages and slows the attack speed of any enemy that attacks it. It also passively increases Viper's magic resistance.

Damage Per Second	8/16/24/32 13/21/29/37 15

Attack Speed Slow	8/16/24/32 13/21/29/37 15

Damage/Slow Duration	4

Bonus Magic Resistance	10%/15%/20%/25% 12%/20%/25%/30% 15

Radius	1400

	Does not pierce Spell Immunity.
	Dispellable.
	Disabled by break.
	Illusions gain this ability.

It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.

Notes

• Total damage:
  • 32/64/96/128
  • 56/88/120/152
    15
• Total magic resistance:
  • 32.5%/36.25%/40%/43.75%
  • 37%/40.75%/44.5%/48.25%
    15
• The damage and slow are applied whenever Viper takes damage from a source within the radius.
• The damage from Corrosive Skin cannot be reflected.

Viper Strike

RV

Targeting
Unit Target

Affects
Enemy Units

Damage Type
Magical

Viper slows the targeted enemy unit's movement and attack speed while also dealing poison damage over time. The slowing effect reduces over the duration of the poison.

Damage Per Second	80/120/160 240 20

Movement Speed Slow	40%/60%/80%

Attack Speed Slow	40/60/80

Duration	5

Cast Range	500 900

50/40/30
     

10

125/175/250
     

125

	Increases the cast range, decreases the mana cost, and decreases the cooldown.
	Blocked by Linken's Sphere and echoed by Lotus Orb.

Once used to slay his sadistic summoner, the most powerful of Netherdrake infections spreads through the veins of those foolish enough to cross Viper.

Notes

• Total damage:
  • 400/600/800
  • 1300
    20

Talent Tree

Talent Tree
Poison Attack Affects Buildings	25	-11s  Nethertoxin Coolldown
+70 Damage	20	+80  Viper Strike DPS
+5  Corrosive Skin Stats	15	+100 Attack Range
8% Spell Lifesteal	10	+20 Attack Speed

Recommended Items

Starting Items			Early Game

Mid Game			Late Game

General Strategy

Launching deadly poison from a distance, Viper poses a grave threat to whomever he targets. As his various toxins eat away at an enemy's health and slow their movement, Viper simply does what he does best: he keeps adding more poison.

Viper (In-Game Description)

Overview

Skill Build

Level	1	2	3	4	5	6	7	8	9	10
Spell
Level	11	12	13	14	15	16	18	20	25
Spell

Early Game

Mid Game

Late Game

Version History

Version	Balance Changes
7.28a
	Poison Attack shard max stack increase from +2 to +3
7.28
	Nethertoxin manacost rescaled from 70/80/90/100 to 85 Level 25 Talent changed from Nethertoxin Silences to -11s Nethertoxin Cooldown Added Aghanim's Shard Upgrades Poison Attack Poison Attacks now also lower armor by 1.5 per stack. Increases max stacks by 2.
7.27b
	Base damage increased by 2 Intelligence increased from 15 + 1.8 to 17 + 2.0
7.26c
	Nethertoxin maximum DPS increased from 60/80/100/120 to 80/100/120/140
7.26b
	All talents are now about 20% weaker
7.25
	Viper Strike damage increased from 60/100/145 to 80/120/160 Level 10 Talent increased from +8% Spell Lifesteal to +10%
7.23f
	Poison Attack manacost increased from 20 to 25
7.23
	Base attack speed increased from 100 to 120 Poison Attack range increased from 600 to 600/640/680/720 Poison Attack has been reworked. Reduces magic resistance by 3/5/7/9%, movement speed by 6/8/10/12% and deals 4/8/12/16 dps. The debuff now can be incremented up to 5 times, each time refreshing the duration (not independent debuffs). Lasts 4 seconds. Mana cost: 20. Cooldown: 0 Nethertoxin cooldown increased from 6 to 14 Nethertoxin no longer reduces magic resistance. Nethertoxin now deals increasing amount of damage the longer the target remains continuously in the area. Base damage of 15/20/25/30 DPS up to 60/80/100/120. Requires 4 seconds to reach maximum DPS. Damage Interval: 0.5 Nethertoxin radius increased from 380 to 400 Nethertoxin break overhead effect now only shows up against heroes Viper Strike now deals damage through Spell Immunity (as a result of the Spell Immunity change) Level 20 Talent changed from Poison Attack Affects Buildings to +90 Damage Level 25 Talent changed from +160 Damage to Poison Attack Affects Buildings
7.22f
	Level 25 Talent increased from +120 Damage to +160
7.22e
	Base damage increased by 2 Level 10 Talent increased from +20 Attack Speed to +25 Level 15 Talent increased from +100 Attack Range to +125
7.22d
	Poison Attack damage per missing health from 0.25/0.5/0.75/1 to 0.5/0.75/1/1.25
7.21d
	Agility gain reduced from 2.8 to 2.5 Nethertoxin cooldown increased from 5 to 6
7.21c
	Agility gain reduced from 3.3 to 2.8 Nethertoxin aoe damage no longer stacks with itself Nethertoxin mana cost increased from 75 to 70/80/90/100 Poison Attack slow reduced from 25/30/35/40% to 10/20/30/40%
7.21
	Nethertoxin AoE increased from 350 to 380 Nethertoxin damage increased from 20/35/50/65 to 30/45/60/75
7.20
	Nethertoxin AoE increased from 300 to 350 Nethertoxin damage rescaled from 20/30/40/50 to 20/35/50/65
7.07
	Turn Rate increased from 0.4 to 0.5 Base movement speed reduced by 10 Base armor reduced by 1 Corrosive Skin no longer slows movement speed Corrosive Skin damage increased from 10/15/20/25 to 8/16/24/32 Corrosive Skin Attack Slow rescaled from 10/15/20/25 to 8/16/24/32 Reworked Poison Attack Reworked Nethertoxin Reworked Talent Tree
7.06d
	Viper Strike cooldown reduced from 60/45/30 to 50/40/30
7.06c
	Level 15 Talent from +10 Strength to +15
7.06
	Viper Strike now deals its first tick of damage immediately Viper Strike cooldown rescaled from 70/50/30 to 60/45/30
7.05
	Level 10 Talent increased from +150 Health to +175 Level 15 Talent increased from +8 Strength to +10 Level 15 Talent increased from +14 Agility to +16 Level 20 Talent changed from +7 Armor to Poison Attack Affects Buildings Level 25 Talent changed from Poison Attack Affects Buildings to +20 Armor
7.03
	Level 15 Talent increased from +7 Strength to +8
7.02
	Level 10 Talent from +125 Health to +150
7.00
	Nethertoxin base damage increased from 2.5/5/7.5/10 to 3/6/9/12 Maximum damage increased from 40/80/120/160 to 48/96/144/192 Added Talent Tree
6.88
	Viper Strike Scepter cooldown reduced from 12 to 10 Strength gain increased from 1.9 to 2.1
6.87
	Poison Attack is no longer an Attack Modifier
6.85
	Agility growth increased from 2.5 to 2.9 Corrosive Skin slow no longer pierces Spell Immunity
6.84
	Viper Strike cooldown reduced from 80/50/30 to 70/50/30
6.82
	Corrosive Skin now only affects enemies within 1400 area of effect Corrosive Skin damage cannot be reflected multiple times
6.79
	Poison Attack cooldown reduced from 4/3/0/0 to 0 Corrosive Skin no longer works while doomed
6.78
	Corrosive Skin affects any damage source not just regular attacks Viper Strike is no longer removed by Dark Pact or Kraken Shell
6.77
	Base strength increased by 3
6.75
	Corrosive Skin duration increased from 3 to 4 Viper Strike Aghanim's cast range increased from 800 to 900 Nethertoxin max damage increased from 32/64/96/128 to 40/80/120/160
6.74
	Poison Attack damage increased from 6/12/18/24 to 10/16/22/28 Fixed Poison Attack damage not being lethal
6.72
	Corrosive Skin now stacks with Poison Attack
6.71
	Corrosive Skin damage, slow, and magic resistance increased from 5/10/15/20 to 10/15/20/25
6.69
	Viper Strike (Aghanim's version) mana cost reduced from 125/175/250 to 125
6.68
	Added Aghanim's Scepter to Netherdrake
6.64
	Movement speed decreased by 5
6.63
	Movement speed decreased by 10
6.61
	Nethertoxin now only works on enemy units
6.60
	Replaced Frenzy with a new ability Nethertoxin
6.58
	Viper Strike's cooldown reduced from 80 to 80/50/30 seconds

Notable Players

Lin

Nine

Ceyler

Htz

Irving

See also

• Slow
• Damage Over Time

External links

Guides

• Standard Viper (Middle) Build
• DotaFire's Builds & Guides for Viper