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 49.9%
Pick Rate 8.2%
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 (140.3 - 142.3 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: 49.9%
Pick Rate: 82.9%
After Poison Attack stacks expire, enemies around the target take additional damage.
Poison Attack
After Poison Attack stacks expire, enemies around the target take additional damage equal to =100% of the magic damage dealt by Poison Attack.
RADIUS: =300
Caustic Bath
Win Rate: 50.1%
Pick Rate: 17.1%
Viper's Corrosive Skin effects are increased while he is in Nethertoxin.
Corrosive Skin
Viper's Corrosive Skin effects are increased while he is in Nethertoxin.
MAX BONUS: =100%
TIME FOR MAX BONUS: =4.0
Abilities
BREAKABLE: 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.
LEVEL 20 TALENT: +0.2 Predator Damage Per Missing Health
PATCH 7.37b
Bonus damage is now decreased by the illusion damage reduction amount if applied by illusions
Damage per missing health decreased from 0.25 + 0.05 per Viper's level to 0.15 + 0.05 per Viper's level
PATCH 7.37
New Innate ability. Passive, can't be leveled up
Viper's attacks deal an additional instance of physical damage per missing health percentage of his target, equal to 0.25 + 0.05 per Viper's level. Only works on heroes
Poison Attack
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
24
600
Aghanim's Shard
Increases max stacks, and causes Poison Attack to lower armor per stack and to affect buildings for reduced damage.
- +4% Poison Attack Magic Resistance Reduction
- +15% Poison Attack slow/damage
Nethertoxin
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.
MIN DPS: 15 / 20 / 25 / 30
MAX DPS: 35 / 65 / 95 / 125
MAX DPS DURATION: 4
RADIUS: 400
14
70
900
- +40 Nethertoxin Min/Max Damage
Corrosive Skin
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.
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
- +20 Corrosive Skin Damage Per Second
Viper Strike
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
50 / 40 / 30
700 / 800 / 900
- +80 Viper Strike DPS
- -50% Viper Strike manacost/cooldown
Nosedive
Viper slams into the ground, splattering each enemy in a 500 AoE for 4 seconds with the effect of Corrosive Skin.
20
75
700
Talents
-50% Viper Strike manacost/cooldown
Become Universal
+ 2.9 %
+0.2 Predator Damage Per Missing Health
+ 0.5 %
+n/a Viper Strike DPS
+15% Poison Attack slow/damage
+ 2.2 %
+40 Nethertoxin Min/Max Damage
+20 Corrosive Skin Damage Per Second
+n/a% Poison Attack Magic Resistance Reduction
+ 0.9 %
Win Rate
Pick Rate
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.