Viper

• Viper

• Overview
• Equipment
• Responses

[e][h]Viper

Dire Hero

Attributes

21 +2.4

21 +2.9

15 +1.8

23 - 25

-2

275

Base Stats

Base HP 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 Time

1.7

Base Magic Resist

25%

Turn Rate

0.5

Level Changes

Level

1

15

25

Health

578

1172

1604

Mana

255

555

771

Armor

2.2

10.3

16.1

Damage

44-46

84-86

113-115

Spell Amp

1.1%

2.8%

4.1%

Magic Resist

26%

28%

29%

Movement Speed Amp

1.1%

3.1%

4.5%

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 slows attack and movement speed while dealing damage over time based on how much health the target is missing.

Damage Per Second	0.25× / 0.5× / 0.75× / 1×

Movement Speed Slow	25% / 30% / 35% / 40%

Attack Speed Slow	25 / 30 / 35 / 40

Duration	3

Cast Range	600

Affects	Buildings 20

6 / 4 / 2 / 0

40 / 35 / 30 / 25

	Does not pierce Spell Immunity.
	Dispellable.

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

Notes

• Damage is determined by the percentage of health the target is missing, times the multiplier. (e.g., at max level 50% missing health would be 50 DPS, 90% missing health would be 90 DPS, etc.)
• Damage from multiple casts do not stack, it only refreshes the duration.
• Poison Attack damages buildings and applies the attack slow.
  20

Nethertoxin

WR

Targeting
Point Target

Affects
Enemy Units

Damage Type
Magical

Viper releases a Nethertoxin at the targeted area. Units in that area take damage over time, have lower magic resistance, and have their passives broken.

Damage Per Second	20 / 35 / 50 / 65

Magic Resistance Reduction	10% / 15% / 20% / 25%

Radius	350

Duration	8

Cast Range	900

Applies	Break Silence 25

5

75

	Does not pierce Spell Immunity.

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

Notes

• Total damage:
  • 160 / 240 / 320 / 400
• The projectile moves at 2000 speed.
• Effects only apply to enemies in the area. Effect lingers for 0.5 seconds when leaving the area.

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 14 / 22 / 30 / 38 15

Attack Speed Slow	8 / 16 / 24 / 32 14 / 22 / 30 / 38

Damage/Slow Duration	4

Bonus Magic Resistance	10% / 15% / 20% / 25% 16% / 21% / 26% / 31%

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	60 / 100 / 145 245 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:
  • 300 / 500 / 725
  • 1225
    20

Talent Tree

Talent Tree
+120 Damage	25	Nethertoxin Silences
Poison Attack Affects Buildings	20	+100 Viper Strike DPS
+6 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
7.20
	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

ThuG

Arms

Keyser

Ceyler

See also

• Slow
• Damage Over Time

External links

Guides

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