Poisonous toxins chip away armor and slow enemies
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.
Win Rate 47.8%
Pick Rate 6.8%
Attributes
582 +52.8/lvl
279 +24.0/lvl
21 +2.4/lvl
21 +2.7/lvl
17 +2.0/lvl
Stats
Damage:
48 - 50 + 2.7/level (140 - 142 at level 30)
Range:
575
Armor:
1.5 + 0.5/level (16.9 at level 30)
Movement:
275
Roles
Carry
Durable
Nuker
Pusher
Support
Escape
Disabler
Initiator
Facets
Poison Burst
Win Rate: 47.5%
Pick Rate: 77.1%
After Poison Attack stacks expire, enemies around the target take additional damage.
Caustic Bath
Win Rate: 49.2%
Pick Rate: 22.9%
Viper's Corrosive Skin effects are increased while he is in Nethertoxin.
Abilities
ABILITY: Passive
DAMAGE TYPE: Physical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: Breakable
DISPELLABLE: Yes
Viper's attacks deal an additional instance of physical damage per missing health percentage of the target hero, equal to 0.15 + 0.05 per Viper's level.
DAMAGE PER MISSING HEALTH%:
LEVEL 20 TALENT: +0.2 Predator Damage Per Missing Health
Poison Attack
AFFECTS: Unit
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
DISPELLABLE: Yes
DEBUFF [E]: Yes
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 6 times.
DURATION: 4
DAMAGE PER SECOND: 4 / 8 / 12 / 16
MOVE SLOW: 3% / 6% / 9% / 12%
MAGIC RESISTANCE: 4% / 6% / 8% / 10%
MAX STACKS: 6
ARMOR REDUCTION:
BUILDING DAMAGE: %
BONUS MAX STACKS:
RADIUS:
24
600
FACET: Poison Burst
After Poison Attack stacks expire, enemies around the target take additional damage equal to 100% of the magic damage dealt by Poison Attack.
Aghanim's Shard
Increases max stacks, and causes Poison Attack to lower armor per stack and to affect buildings for reduced damage.
LEVEL 15 TALENT: +15% Poison Attack slow/damage
The Netherdrake's inborn toxic breath quickly drains the vitality of its afflicted.
Nethertoxin
AFFECTS: Area
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
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. Units in it have their attack speed slowed.
Multiple Nethertoxins do not stack.
MIN DPS: 15 / 20 / 25 / 30
MAX DPS: 35 / 65 / 95 / 125
MAX DPS DURATION: 4
RADIUS: 400
ATTACK SPEED SLOW: 30 / 40 / 50 / 60
DURATION: 6.5 / 7 / 7.5 / 8
14
70
900
LEVEL 25 TALENT: Nethertoxin Radius increases by 25 every 0.5s
LEVEL 15 TALENT: +40 Nethertoxin Min/Max Damage
Poison from the Nether Reaches turns wounds into fatalities, and fatigue into death.
Corrosive Skin
ABILITY: Passive
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: Breakable
DISPELLABLE: Yes
Viper exudes an infectious toxin that damages and slows the attack speed of any enemy that damages it in a 1200 radius. The acid exudate also increases Viper's resistance to magic.
Stacks multiplicatively with other magic damage resistance sources.
Break prevents the application of Corrosive Skin. Does not disable Corrosive Skin application from Nosedive.
DURATION: 4
ATTACK SLOW: 8 / 16 / 24 / 32
MAGIC RESISTANCE: 10% / 15% / 20% / 25%
DAMAGE PER SECOND: 8 / 16 / 24 / 32
MAX RANGE RADIUS: 1200
MAX BONUS: %
TIME FOR MAX BONUS:
FACET: Caustic Bath
Viper's Corrosive Skin effects are increased while he is in Nethertoxin.
Aghanim's Scepter
MAX BONUS: %
TIME FOR MAX BONUS:
LEVEL 10 TALENT: +20 Corrosive Skin Damage Per Second
It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.
Viper Strike
AFFECTS: Unit
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: Yes
PASSIVE: No
DEBUFF [E]: Yes
Viper slows the targeted enemy unit's movement and attack speed while also disabling their passives and dealing poison damage over time. The slowing effect reduces over the duration of the poison.
DURATION: 6
DAMAGE PER SECOND: 70 / 110 / 150
MOVE SLOW: 60% / 70% / 80%
ATTACK SLOW: 80 / 120 / 160
50 / 40 / 30
700 / 800 / 900
LEVEL 25 TALENT: -50% Viper Strike manacost/cooldown
LEVEL 20 TALENT: +80 Viper Strike DPS
LEVEL 10 TALENT: +1s Viper Strike Duration
Once used to slay his sadistic summoner, the most powerful of Netherdrake infections spreads through the veins of those foolish enough to cross Viper.
Nosedive
Scepter grants new ability
AFFECTS: Area
DAMAGE TYPE: Magical
PIERCES DEBUFF IMMUNITY: No
PASSIVE: No
DISPELLABLE: Yes
Viper slams into the ground, releasing a Nethertoxin and splattering each enemy in a 500 AoE for 4 seconds with the effect of Corrosive Skin.
20
75
700
PATCH 7.38
Now also releases Nethertoxin upon landing
It was thought that Netherdrake wings touch ground only in death, but some surmise that those who've witnessed more intentional landings merely haven't survived to tell the tale.
Talents [E]
-50% Viper Strike manacost/cooldown
+ 0.2 %
Nethertoxin Radius increases by 25 every 0.5s
+0.2 Predator Damage Per Missing Health
+80 Viper Strike DPS
+ 0.8 %
+15% Poison Attack slow/damage
+ 0.5 %
+40 Nethertoxin Min/Max Damage
+20 Corrosive Skin Damage Per Second
+ 0.2 %
+1s Viper Strike Duration
Win Rate
Pick Rate
PATCH 7.38
Level 10 Talent +4% Poison Attack Magic Resistance Reduction replaced with +1s Viper Strike Duration
Strategy
Viper is very strong in early to mid game but drops off later on. Play actively while you're the strongest.
Look to stack up Poison Attacks on a single target and fix your mana issues early on.
Viper is insanely slow. Consider getting a casual Wind Lace and Boots of Travel in the long run.
You can kill tanky heroes around the map with the break effect from your Viper Strike.
Push out the side lanes when not much is happening on the map. You can do it from fog with Nethertoxin.
Although you are very tanky in early stages, you aren't nearly as tanky around the 20 minute mark.
Pick up Aghanims Shard later on to further increase your DPS and building damage.
Counter Strategy
Don't allow Viper to stack more than 3 Poison Attacks on you.
Viper Strike breaks passives. Stay away from it until you have a Black King Bar.
Consider teleporting out quickly when you find yourself in trouble against Viper.
Magic resistance items are great against Viper's magic damage.
Linken's Sphere and a well timed Lotus Orb are great against Viper Strike.
When Viper has the Poison Burst facet, try not to stand next to the target he is attacking with Poison Attack to avoid its AoE burst damage.
Lore
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.