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| name = Viper |
| name = Viper |
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| title = Netherdrake |
| title = Netherdrake |
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| − | | quote = You've failed the acid test. |
+ | | quote = You've failed the acid test. |
| soundclip = vo_viper_vipe_kill_11.mp3 |
| soundclip = vo_viper_vipe_kill_11.mp3 |
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| voice = Tony Todd |
| voice = Tony Todd |
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* With {{#var:Poison Attack value2}} ({{Symbol|Aghshard}} {{ValueColor|1|{{#var:Poison Attack value2 shard}}|shard}}) stacks, it reduces the enemy target's [[movement speed]] by {{calc|v1*{{#var:Poison Attack value2}}|v1={{#var:Poison Attack value4}}|%}} ({{Symbol|Aghshard}} {{ValueColor|4|{{calc|v1*{{#var:Poison Attack value2 shard}}|v1={{#var:Poison Attack value4}}|%}}|shard}}). |
* With {{#var:Poison Attack value2}} ({{Symbol|Aghshard}} {{ValueColor|1|{{#var:Poison Attack value2 shard}}|shard}}) stacks, it reduces the enemy target's [[movement speed]] by {{calc|v1*{{#var:Poison Attack value2}}|v1={{#var:Poison Attack value4}}|%}} ({{Symbol|Aghshard}} {{ValueColor|4|{{calc|v1*{{#var:Poison Attack value2 shard}}|v1={{#var:Poison Attack value4}}|%}}|shard}}). |
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| − | ** It also reduces the enemy target's [[magic resistance]] to |
+ | ** It also reduces the enemy target's [[magic resistance]] to {{calc|1-(1-{{Attribute bonuses|magic resistance}})*(1+v1*{{#var:Poison Attack value2}})|v1={{#var:Poison Attack value5}}|%}} ({{Symbol|Aghshard}} {{ValueColor|4|{{calc|1-(1-{{Attribute bonuses|magic resistance}})*(1+v1*{{#var:Poison Attack value2 shard}})|v1={{#var:Poison Attack value5}}|%}}|shard}}). |
** For how much movement speed and magic resistance Poison Attack reduces with a certain amount of stacks on each level, please refer to the [[#Poison Attack Calculations|chart]] below. |
** For how much movement speed and magic resistance Poison Attack reduces with a certain amount of stacks on each level, please refer to the [[#Poison Attack Calculations|chart]] below. |
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Revision as of 10:33, 7 November 2021
Hero
Viper
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21 + 2.7
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Viper, the Netherdrake, is a ranged agility hero who functions as an excellent nuker, ganker and carry due to his assortment of low-cooldown spells and debilitating attacks. His modus operandi is to whittle away his opponents' vitality over long stretches of time while they fail to inflict fatal damage. To that end Viper wields magic-based abilities focused on inhibiting speed and defenses. He infects his quarry with Poison Attack, a seemingly innocuous liquid that rapidly burns away more health as they became sicker, while drowning them in noxious pools which block their innate powers. Meanwhile Corrosive Skin fortifies him against magic damage and poisons those who dare strike him. For impervious foes he reserves his most powerful venom, Viper Strike, as a surprise gift. A slow tank that dominates the early stages of a game, Viper depends on consolidating that advantage before opponents can afford to exploit his weaknesses.
Bio
Viper, the Netherdrake▶️ "You've failed the acid test."
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.
Abilities
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.
Cast Range: 600/640/680/720
Max Stacks: 5 (
8)
8)Damage per Second per Stack: 4/8/12/16
Move Speed Slow per Stack: 6%/8%/10%/12%
Magic Resistance Reduction per Stack: 4%/6%/8%/10%
Duration: 4
Armor Reduction per Stack: 1 Building Damage Percentage: 40%
0
18/
Aghanim's Shard Upgrade:
Causes Poison Attack to lower armor by 1 per stack and allows it to affect buildings for 40%. Increases max stacks by 3.
The Netherdrake's inborn toxic breath quickly drains the vitality of its afflicted.
- The cast range of Poison Attack is based on the attack range of the caster.
- The cast range can be further increased by other attack range bonuses. However, it is not affected by cast range bonuses.
- Both Autocast and manually casting it uses Viper's current attack range.
- Poison Attack places one debuff on the target, successive attacks increase its stack count, and resets the duration of the entire stack.
- Does not work against allied units or wards.
- The number of stacks can be seen on the status buff icon as well.
- With 5 ( 8) stacks, it reduces the enemy target's movement speed by 30%/40%/50%/60% ( 48%/64%/80%/96%).
- It also reduces the enemy target's magic resistance to 10%/2.5%/-5%/-12.5% ( 1%/-11%/-23%/-35%).
- For how much movement speed and magic resistance Poison Attack reduces with a certain amount of stacks on each level, please refer to the chart below.
- It also reduces the enemy target's magic resistance to 10%/2.5%/-5%/-12.5% (
- Deals damage in 1-second intervals, starting 1 second after the debuff is applied, resulting in 4 damage instances.
- With the maximum stacks, Poison Attack can deal up to 20/40/60/80 ( 32/64/96/128) damage per second, and a total of 80/160/240/320 ( 128/256/384/512) damage in 4 seconds.
- For how much damage per second and total damage Poison Attack deals with a certain amount of stacks on each level, please refer to the chart below.
- With the maximum stacks, Poison Attack can deal up to 20/40/60/80 (
- The attacks first apply the debuff, then their own damage.
- With Aghanim's Shard, Poison Attack reduces armor and also applies its effects on buildings as well.
- Reduces armor by 1/2/3/4/5/6/7/8 per stack.
- With the maximum stacks, Poison Attack reduces all affected buildings' total magic resistance to -32%/-48%/-64%/-80%, dealing up to 16.9/37.89/62.98/92.16 damage per second to buildings.
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. Disables passives of affected units.
Cast Range: 900
Radius: 400
Min Damage per Second: 15/20/25/30
Max Damage per Second: 50/75/100/125 ( 90/115/140/165)
90/115/140/165)Max Damage Duration: 4
Damage Interval: 0.5
Aura Linger Duration: 0.5
Duration: 8
14 ( Expression error: Missing operand for -.)
Expression error: Missing operand for -.) 85
Modifiers [?]
modifier_viper_nethertoxin_thinker
Undispellable
modifier_viper_nethertoxin
Undispellable
modifier_viper_nethertoxin_mute
Undispellable
Poison from the Nether Reaches turns wounds into fatalities, and fatigue into death.
- Nethertoxin's projectile travels at a speed of 2000.
- All effects of Nethertoxin, including the damage per interval, are provided by an aura. Its debuff lingers for 0.5 seconds.
- Deals damage in 0.5-second intervals, starting 0.5 seconds after receiving the debuff, resulting in up to 17 instances.
- The damage increases by 2.19/3.44/4.69/5.94 ( 4.69/5.94/7.19/8.44) for each 0.5 seconds spent within the area.
- As the damage increases per interval, and once it reaches the maximum 25/37.5/50/62.5 ( 45/57.5/70/82.5) damage per interval, the damage at subsequent intervals deal the maximum damage, until the end of its duration.
- Can deal up to 346.25/513.75/681.25/848.75 ( 596.25/763.75/931.25/1098.75) damage within the area for the entire duration.
- For how much damage per interval Nethertoxin deals, with the damage increasing talent, please refer to the chart below.
- As the damage increases per interval, and once it reaches the maximum 25/37.5/50/62.5 (
- The damage value resets whenever the enemy leaves the radius and enters it again. It does not count accumulated time spent within the radius.
- Multiple instances of Nethertoxin's debuff do not stack.
- When leveling up the ability, the damage on already affected units does not update.
- However, if an enemy receives the debuff after leveling it up or learning the talent, that enemy receives the new damage values.
Corrosive Skin
Viper exudes an infectious toxin that damages and slows the attack speed of any enemy that damages it in a 1400 radius. The acid exudate also increases Viper's resistance to magic.
Max Proc Distance: 1400
Magic Resistance Bonus: 10%/15%/20%/25% ( 500%/750%/1000%/1250%)
500%/750%/1000%/1250%)Damage per Second: 8/16/24/32
Attack Speed Slow: 8/16/24/32 ( 400/800/1200/1600)
400/800/1200/1600)Duration: 4
It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.
- Increases Viper's total magic resistance to 33%/36%/40%/44% ( 400%/588%/775%/963%).
- The damage and attack speed slow debuff is applied to whoever damages Viper within 1400 range.
- Corrosive Skin procs on all 3 damage types, but not self-inflicted damage and HP Removal effects (e.g. Sunder, Soul Ring etc.).
- Damage procced is dealt to the damage source itself. This means, damage dealt by abilities that are not sourced from the caster (e.g. Proximity Mines), do not trigger Corrosive Skin debuff on the caster.
- The damage dealt has the no-reflection flag, preventing its damage from interacting with other sources of damage with the same flag.
- Deals damage in 1-second intervals, starting 1 second after the debuff is applied, resulting in 4 damage instances.
- Can deal a total of 32/64/96/128 damage (before reductions).
- Successive procs of Corrosive Skin on the same target do not stack, only the debuff gets refreshed.
- Does not affect buildings, wards, invulnerable or allied units.
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.
Cast Range: 500 ( 900)
900)Damage per Second: 80/120/160 ( 160/200/240)
160/200/240)Move Speed Slow: 40%/60%/80%
Attack Speed Slow: 40/60/80
Duration: 5
50/
10) 100/
125)
Aghanim's Scepter Upgrade:
Decreases mana cost and cooldown, and increases cast range.
Modifiers [?]
modifier_viper_viper_strike_slow
Death
Once used to slay his sadistic summoner, the most powerful of Netherdrake infections spreads through the veins of those foolish enough to cross Viper.
- Viper Strike's projectile travels at a speed of 1200.
- The slow decreases over time. Affected units regain 0.3%/0.4%/0.5% of their movement speed and 0.267/0.4/0.533 attack speed on each server tick.
- This equals to 8%/12%/16% movement speed and 8/12/16 attack speed regained per second.
- Deals damage in 1-second intervals, starting immediately as the debuff is applied, resulting in 5 damage instances.
- Can deal up to 400/600/800 ( 800/1000/1200) damage (before reductions).
- Can deal up to 400/600/800 (
- Successive casts of Viper Strike on the same target do not stack, only the debuff gets refreshed.
- The particle effects on Viper's wings during the cast time are visible to everyone, showing that the ability is being cast.
Poison Attack Calculations
Units  Movement Speed Slow/ Stack
| |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Level / Stack | Base | 2nd | 3rd | 4th | 5th |  6th
|
7th
|
8th
| |
| Level 1 | 6% | 12% | 18% | 24% | 30% | 36% | 42% | 48% | |
| Level 2 | 8% | 16% | 24% | 32% | 40% | 48% | 56% | 64% | |
| Level 3 | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | |
| Level 4 | 12% | 24% | 36% | 48% | 60% | 72% | 84% | 96% | |
Units and Buildings  Magic Resistance Reduction/ Stack
| |||||||||
| Level / Stack | Base | 2nd | 3rd | 4th | 5th | 6th
|
7th
|
8th
| |
| Level 1 | 4% | 8% | 12% | 16% | 20% | 24% | 28% | 32% | |
| Level 2 | 6% | 12% | 18% | 24% | 30% | 36% | 42% | 48% | |
| Level 3 | 8% | 16% | 24% | 32% | 40% | 48% | 56% | 64% | |
| Level 4 | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | |
| Damage per Second/ Stack and Σ Damage for the Entire Duration | |||||||||
| Level / Stack | Base | 2nd | 3rd | 4th | 5th | 6th
|
7th
|
8th
| |
| Level 1 | 4DPS (Σ 16) | 8DPS (Σ 32) | 12DPS (Σ 48) | 16DPS (Σ 64) | 20DPS (Σ 80) | 24DPS (Σ 96) | 28DPS (Σ 112) | 32DPS (Σ 128) | |
| Level 2 | 8DPS (Σ 32) | 16DPS (Σ 64) | 24DPS (Σ 96) | 32DPS (Σ 128) | 40DPS (Σ 160) | 48DPS (Σ 192) | 56DPS (Σ 224) | 64DPS (Σ 256) | |
| Level 3 | 12DPS (Σ 48) | 24DPS (Σ 96) | 36DPS (Σ 144) | 48DPS (Σ 192) | 60DPS (Σ 240) | 72DPS (Σ 288) | 84DPS (Σ 336) | 96DPS (Σ 384) | |
| Level 4 | 16DPS (Σ 64) | 32DPS (Σ 128) | 48DPS (Σ 192) | 64DPS (Σ 256) | 80DPS (Σ 320) | 96DPS (Σ 384) | 112DPS (Σ 448) | 128DPS (Σ 512) | |
Units and Buildings  Armor Reduction/ Stack | |||||||||
| All Levels / Stack
|
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
Nethertoxin Calculations
Nethertoxin Damage/ Interval Calculations with  Talent
| ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Duration/ Level | 0.5s | 1s | 1.5s | 2s | 2.5s | 3s | 3.5s | 4s | 4.5s | 5s | 5.5s | 6s | 6.5s | 7s | 7.5s | 8s |
| Level 1 | 7.5 | 9.7 (12.2) | 11.9 (16.9) | 14.1 (21.6) | 16.3 (26.3) | 18.4 (30.9) | 20.6 (35.6) | 22.8 (40.3) | 25 (45) | |||||||
| Level 2 | 10 | 13.4 (15.9) | 16.9 (21.9) | 20.3 (27.8) | 23.8 (33.8) | 27.2 (39.7) | 30.6 (45.6) | 34.1 (51.6) | 37.5 (57.5) | |||||||
| Level 3 | 12.5 | 17.2 (19.7) | 21.9 (26.9) | 26.6 (34.1) | 31.3 (41.3) | 35.9 (48.4) | 40.6 (55.6) | 45.3 (62.8) | 50 (70) | |||||||
| Level 4 | 15 | 20.9 (23.4) | 26.9 (31.9) | 32.8 (40.3) | 38.8 (48.8) | 44.7 (57.2) | 50.6 (65.6) | 56.6 (74.1) | 62.5 (82.5) | |||||||
Talents
| Hero Talents | ||
|---|---|---|
| -50% Viper Strike manacost/cooldown | 25 | Become Universal |
| +20% Poison Attack slow/damage | 20 | +80 Viper Strike DPS |
| +15% Corrosive Skin Magic Resistance | 15 | +40 Nethertoxin Min/Max Damage |
| +18 Corrosive Skin Damage Per Second | 10 | +4% Poison Attack Magic Resistance Reduction |
Recent Changes
Main Article: Viper/Changelogs
Version
Description
- Reduced Nethertoxin max damage per second from 50/75/100/125 to 35/65/95/125.
- Reduced Corrosive Skin radius from 1400 to 1200.
- Poison Attack: Aghanim's Shard Max Stacks decreased from 8 to 7.
- Talents:
- LVL 10Poison Attack Magic Resistance Reduction decreased from +5% to +4%.LVL 20Poison Attack slow/damage decreased from +25% to +20%.
- Nethertoxin
- No longer applies Break.
- Now slows attack speed by 30/40/50/60.
- Viper Strike
- Now also applies Break.
- Movement Slow increased from 40/60/80% to 60/70/80%.
- Cast Point improved from 0.3s to 0.2s.
Recommended Items
Gameplay
| It was foolhardy to try and tame a Netherdrake, a lesson the old wizard learned in death. Freed from his captor, Viper spread his wings and went forth to explore the surface world. His Poison Attacks cause joints to harden, crippling foes whether they choose to flee or fight. Nethertoxin spreads throughout their body, sapping the will and weakening the spirit. The Netherdrake's tough, Corrosive Skin protects against spellcraft, and burns assailants with acid. But it is the dreaded Viper Strike that signals the beginning of the end. The afflicted victim staggers to a crawl, barely able to take his next step. If the Netherdrake doesn't finish him off, the venom in his veins will. | |
| Roles: |  Carry  Durable  Initiator  Disabler
|
| Complexity: | 
|
| Adjectives: | Legs ( 2 )
|
Audio
History
Equipment
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Trivia
- Viper's response ▶️ "Holy shit, it's me!" is a reference to a scene of the movie Top Gun.[1] Gyrocopter makes a similar, yet more accurate ▶️ response upon meeting him as an ally.
- Viper's Chinese name is 冥界亚龙 (Míngjiè Yàlóng), a literal translation of "Netherdrake". However, Viper Strike's translation still uses the word "Viper" (蝮蛇, fùshé).
Gallery
Model
Model before Version 7.00
Ability icon progress
Hero icon progress
