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 45.9%
Pick Rate 5.2%
Attributes
462 +52.8/lvl
204 +24/lvl
21 +2.4/lvl
21 +2.7/lvl
17 +2/lvl
Stats
Damage:
27 - 29 + 2.7/level (105.3 - 107.3 at level 30)
Range:
575
Armor:
-2 + 0.5/level (12.5 at level 30)
Movement:
275
Roles
Carry
Escape
Nuker
Initiator
Durable
Disabler
Support
Pusher
Facets
Poison Burst
Win Rate: 45.9%
Pick Rate: 78.4%
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: 45.9%
Pick Rate: 21.6%
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
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: 3/6/14/22/30
MAGIC RESISTANCE: 5%/10%/15%/20%/25%
DAMAGE PER SECOND: 3/6/14/22/30
MAX RANGE RADIUS: 1200
MAX BONUS: 0%
TIME FOR MAX BONUS: 0
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.
AFFECTS:unit
PASSIVE:No
DISPELLABLE:basic
DEBUFF:yes
duration:4
damage:4 / 8 / 12 / 16
movement speed:3 / 6 / 9 / 12
magic resistance:4 / 6 / 8 / 10
max stacks:6
bonus range:25
Aghanim`s Shard Upgrade
Increases max stacks, and causes Poison Attack to lower armor per stack and to affect buildings for reduced damage.
armor reduction:1
building dmg pct:40
bonus max stacks:2
+4% Poison Attack Magic Resistance Reduction
+20% Poison Attack slow/damage
24
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.
AFFECTS:area
PASSIVE:No
min damage:15 / 20 / 25 / 30
max damage:35 / 65 / 95 / 125
max duration:4
radius:400
attack slow:30 / 40 / 50 / 60
duration:6.5 / 7 / 7.5 / 8
projectile speed:2400
+40 Nethertoxin Min/Max Damage
14
70
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.
PASSIVE:Breakable
DISPELLABLE:basic
duration:4
bonus attack speed:3 / 6 / 14 / 22 / 30
bonus magic resistance:5 / 10 / 15 / 20 / 25
damage:3 / 6 / 14 / 22 / 30
max range:1200
effect multiplier distance:500
effect multiplier:4
+20 Corrosive Skin Damage Per Second
+20 Corrosive Skin Attack Speed Slow
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.
AFFECTS:unit
PASSIVE:No
DEBUFF:yes
duration:6
damage:70 / 110 / 150
bonus movement speed:-60 / -70 / -80
bonus attack speed:-80 / -120 / -160
AbilityManaCost:100 / 150 / 200
projectile speed:1500
max charges:2
charge restore time:30
does break:1
Aghanim`s Scepter Upgrade
Decreases mana cost and cooldown. Increases cast range.
+80 Viper Strike DPS
-50% Viper Strike manacost/cooldown
50 / 40 / 30
Nosedive
Viper slams into the ground, splattering each enemy in a 500 AoE for 4 seconds with the effect of Corrosive Skin.
AFFECTS:area
PASSIVE:No
DISPELLABLE:basic
corrosive radius:500
duration:0.1
effect duration:4
dive speed:700
start height:100
20
75
Talents
+4% Poison Attack Magic Resistance Reduction
+20 Corrosive Skin Damage Per Second
+40 Nethertoxin Min/Max Damage
+20 Corrosive Skin Attack Speed Slow
+80 Viper Strike DPS
+20% Poison Attack slow/damage
Become Universal
-50% Viper Strike manacost/cooldown
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.