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Poisonous toxins chip away armor and slow enemies. | |
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. With Poison Attacks imbued with virulent liquid, causing joints to harden, crippling foes whether they choose to flee or fight. Nethertoxin spreads throughout their bodies, turning wounds into fatalities, and fatigue into death. The Netherdrake's tough, Corrosive Skin protects against spell-craft, 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 its next step. If the Netherdrake doesn't finish his targets off, the venom in their veins will. | |
Roles: | Carry Durable Initiator Disabler |
Complexity: | |
Adjectives: | Arachnophobic, Flying, Green, Wings, Nose Legs ( 0 )
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Bio[]
▶️ "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.
Alias:
Netherdrake
Abilities[]
Intensifies Viper's venom, adding an effect to his normal attack that applies a stacking movement speed slow and magic resistance reduction while dealing damage over time. Stacks up to 5 times.
Attack Range Bonus: 25/65/105/145
Duration: 4
Increases max stacks, and causes Poison Attack to lower armor per stack and to affect buildings for reduced damage.
Uses the caster's current attack range when Autocast.
Manually casting it uses the cast range.
Manually casting it uses the cast range.
The Netherdrake's inborn toxic breath quickly drains the vitality of its afflicted.
- Poison Attack's cast range can only be further increased by attack range bonuses of the same range type as the caster. It is not affected by cast range bonuses.
- Since Poison Attack grants attack range bonus while active, 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 ( 7) stacks, it reduces the enemy target's movement speed by 15%/30%/45%/60% ( 21%/42%/63%/84%).
- TALENTThe movement speed slow increasing talent further increases the movement speed reduction to 18%/36%/54%/72% ( 25.2%/50.4%/75.6%/100.8%).
- For how much magic resistance reduction, damage per second and total damage (before reductions) Poison Attack deals with a certain amount of stacks on each level, please refer to the chart below.
- The magic resistance reduction of Poison Attack stacks additively by itself. However, it stacks multiplicatively with other magic resistance sources.
- Deals damage in 1-second intervals, starting 1 second after the debuff is applied, resulting in 4 damage instances.
- With max stacks, Poison Attack can deal up to 20/40/60/80 ( 28/56/84/112) damage per second, and a total of 80/160/240/320 ( 112/224/336/448) against enemy units in 4 seconds.
- TALENTWith the damage per second increasing talent, it can deal up to 24/48/72/96 ( 33.6/67.2/100.8/134.4) damage per second, and a total of 96/192/288/384 ( 134.4/268.8/403.2/537.6) against enemy units.
- The attacks first apply the debuff, then their own damage.
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.
Max Damage Duration: 4
Damage Interval: 0.5
Aura Linger Duration: 0.5
Attack Speed Slow: 30/40/50/60
Duration: 6.5/7/7.5/8
Modifiers [?]
modifier_viper_nethertoxin_thinker
Undispellable
modifier_viper_nethertoxin
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 14/15/16/17 instances.
- The damage increases by 1.25/2.81/4.38/5.94 for each 0.5 seconds spent within the area.
- Since both the minimum and maximum value of the damage per interval are increased evenly by 40, the damage increase per interval above remains the same.
- As the damage increases per interval, and once it reaches the maximum 17.5/32.5/47.5/62.5 ( 37.5/52.5/67.5/82.5) damage per interval, the damage at subsequent intervals deal the maximum damage, until the end of its duration.
- Can deal up to 200/386.25/602.5/848.75 ( 480/686.25/922.5/1188.75) damage within the area for the entire duration (before reductions).
- For how much damage per interval Nethertoxin deals, with the damage increasing talent, please refer to the chart below.
- The damage value resets whenever the enemy leaves the radius and enters it again. It does not count accumulated time spent within the radius.
- Leveling up the ability or the damage increasing talent does not update the damage of already placed debuffs.
- However, if the debuff is applied after leveling the ability or the talent, the affected enemy takes the new damage values.
- Multiple instances of Nethertoxin's debuff do not stack.
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.
Attack Speed Slow: 8/16/24/32
Duration: 4
Corrosive Skin applies 2x the damage and attack speed slow to enemies that are within 500 distance of Viper.
It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.
- Stacks multiplicatively with other magic resistance sources.
- Increases Viper's magic resistance to 32.5%/36.25%/40%/43.75% ( 43.75%/47.5%/51.25%/55%).
- With the magic resistance bonus from this source, every 10 points of intelligence further increases the total magic resistance by 0.9%/0.85%/0.8%/0.75% ( 0.9%/0.85%/0.8%/0.75%). [?]
- Applies the damage per second and attack speed slow debuff to whoever damages Viper within 1200 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 that the 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.
- Also does not procs on-damage effects.
- 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 ( 104/136/168/200) 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, hidden or allied units.
- Places the debuff on invulnerable units.
- Slows the attack speed of invulnerable units, however, it does not damage them.
- Corrosive Skin now reduces a total of 16/32/48/64 attack speed within 500 radius upon proc.
- Corrosive Skin now first applies the damage per second, then the debuff.
- It still deals damage in the same intervals, resulting in a total of 5 damage instances.
- Within the near radius, it can deal a total of 80/160/240/320 ( 260/340/420/500) damage.
- Within 501 ‒ 1200 radius, it deals up to a total of 40/80/120/160 ( 130/170/210/250) damage instead.
Nosedive
Viper slams into the ground, disarming each enemy in a 500 AoE for 2 seconds and splattering everyone in a 1200 AoE with the effect of Corrosive Skin.
Corrosive Skin Multiplier: 2
Disarm Duration: 4
Modifiers [?]
Requires drafting Viper Strike to be unlocked.
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.
- Requires Aghanim's Scepter to be unlocked.
- Upon cast, Viper rises 100 distance upwards, then dives to the ground at a speed of 500 in 0.1 seconds.
- The Corrosive Skin values applied to enemies by Nosedive within the effect radius are doubled by default, regardless of its near radius.
- Destroys trees within a 100 radius around Viper upon landing.
- Nosedive first apply the disarm debuff, then the Corrosive Skin debuff.
- Corrosive Skin notes fully apply. If it is not learned, Nosedive only applies the disarm, and the Corrosive Skin debuff is not applied.
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.
Move Speed Slow: 60%/70%/80%
Attack Speed Slow: 80/120/160
Duration: 6
Grants the Nosedive ability.
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 1500.
- The slow decreases over time. The affected target regains 0.3%/0.4%/0.4% of their movement speed and 0.444/0.667/0.889 attack speed on each server tick.
- This equals to 10%/11.7%/13.3% movement speed and 13.333/20/26.667 attack speed regained per second.
- Deals damage in 1-second intervals, starting immediately as the debuff is applied, resulting in 6 damage instances.
- Can deal up to 420/600/900 ( 900/1080/1380) damage (before reductions).
- 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.
- Fully affects Couriers.
Ability
Passive
Passive
Affects
Self
Self
Changes Viper's primary attribute to Universal.
- Requires the level 25 talent learned to be unlocked.
- Viper becomes a universal hero upon learning this talent. Checks all of Viper's attributes and adapts the bonus instantly when learning the talent.
- Every point of / / attribute now increases Viper's main attack damage by 0.7.
Poison Attack Calculations[]
DPS Calculations
Poison Attack DPS at nth Stack and Σ Damage for the Entire Duration | ||||||||
---|---|---|---|---|---|---|---|---|
Stack Count | Base | 2 | 3 | 4 | 5 | 6 | 7 | Σ Damage |
L1 () () |
4 (4.8) |
8 (9.6) |
12 (14.4) |
16 (19.2) |
20 (24) |
24 (28.8) |
28 (33.6) |
112 (134.4) |
L2 () () |
8 (9.6) |
16 (19.2) |
24 (28.8) |
32 (38.4) |
40 (48) |
48 (57.6) |
56 (67.2) |
224 (268.8) |
L3 () () |
12 (14.4) |
24 (28.8) |
36 (43.2) |
48 (57.6) |
60 (72) |
72 (86.4) |
84 (100.8) |
336 (403.2) |
L4 () () |
16 (19.2) |
32 (38.4) |
48 (57.6) |
64 (76.8) |
80 (96) |
96 (115.2) |
112 (134.4) |
448 (537.6) |
All damage values calculated are before reductions. |
Magic Resistance Reduction Calculations
- Aghanim's Shard Net Bonus is calculated between 7 stacks and 5 stacks.
- With 7 max stacks, Poison Attack reduces an extra flat 6%/9%/12%/15% ( 12%/15%/18%/21%) magic resistance compared to 5 stacks.
- Actual magic resistance reduction calculated is based on the 25% base magic resistance of heroes.
Poison Attack Net Magic Resistance Reduction at nth Stack | ||||||||
---|---|---|---|---|---|---|---|---|
Stack Count | Base | 2 | 3 | 4 | 5 | 6 | 7 | Σ Net Bonus |
L1 () () |
−3% (−6%) |
−6% (−12%) |
−9% (−18%) |
−12% (−24%) |
−15% (−30%) |
−18% (−36%) |
−21% (−42%) |
6% (12%) |
L2 () () |
−4.5% (−7.5%) |
−9% (−15%) |
−13.5% (−22.5%) |
−18% (−30%) |
−22.5% (−37.5%) |
−27% (−45%) |
−31.5% (−52.5%) |
9% (15%) |
L3 () () |
−6% (−9%) |
−12% (−18%) |
−18% (−27%) |
−24% (−36%) |
−30% (−45%) |
−36% (−54%) |
−42% (−63%) |
12% (18%) |
L4 () () |
−7.5% (−10.5%) |
−15% (−21%) |
−22.5% (−31.5%) |
−30% (−42%) |
−37.5% (−52.5%) |
−45% (−63%) |
−52.5% (−73.5%) |
15% (21%) |
Nethertoxin Calculations[]
Nethertoxin Damage/ Interval Calculations with the damage increasing Talent | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Duration | 0.5s | 1s | 1.5s | 2s | 2.5s | 3s | 3.5s | 4s | 4.5s | 5s | 5.5s | 6s | 6.5s | 7s | 7.5s | 8s | 8.5s | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 1 () |
7.5 (27.5) |
8.75 (28.75) |
10 (30) |
11.25 (31.25) |
12.5 (32.5) |
13.75 (33.75) |
15 (35) |
16.25 (36.25) |
17.5 (37.5) |
17.5 (37.5) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 2 () |
10 (30) |
12.81 (32.81) |
15.62 (35.62) |
18.43 (38.43) |
21.24 (41.24) |
24.05 (44.05) |
26.86 (46.86) |
29.67 (49.67) |
32.5 (52.5) |
32.5 (52.5) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 3 () |
12.5 (32.5) |
16.88 (36.88) |
21.26 (41.26) |
25.64 (45.64) |
30.02 (50.02) |
34.4 (54.4) |
38.78 (58.78) |
43.16 (63.16) |
47.5 (67.5) |
47.5 (67.5) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Level 4 () |
15 (35) |
20.94 (40.94) |
26.88 (46.88) |
32.82 (52.82) |
38.76 (58.76) |
44.7 (64.7) |
50.64 (70.64) |
56.58 (76.58) |
62.5 (82.5) |
62.5 (82.5) | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
The last interval is Nethertoxin's aura linger duration. |
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[]
<div> <div class="updatetablehead"> <div id="version">Version</div><div id="description">Description</div> </div> <div class="updatetablebody">
- 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.
</div> </div>
Recommended Items[]
Starting items:
- Tango helps Viper stay in lane.
- Enchanted Mango provides health regeneration and burst mana.
- Faerie Fire gives attack damage and burst HP.
- Iron Branch increases attributes and healing with Tango.
Early game:
- Boots of Speed are a standard pickup that give movement speed.
- Wraith Band provides a decent boost to Viper's attributes. The extra damage and attack speed help him secure last hits.
- Infused Raindrops adds extra mana regeneration and protection against magical damage.
- Magic Wand offers burst health and mana.
Mid game:
- Arcane Boots expand his mana pool, allowing him to use abilities more often inside and outside of combat.
- Rod of Atos gives Viper access to a root, greatly enhancing his ganking power, as well as much-needed stats. The components also provide a convenient build up for him in the early game
Late game:
- Guardian Greaves, the upgrade to Arcane Boots, make Viper exceptionally tanky. The active restores a large portion of health and mana to the entire team while dispelling debuffs; the passive prevents low health heroes from succumbing to their wounds. The extra survivability keeps Viper alive far longer, allowing him to sustain his allies and deal more damage.
- Hurricane Pike enhances his mobility and adds decent stats for reasonable gold.
- Black King Bar grants debuff immunity so Viper can act without worrying about most enemy disables.
- Eye of Skadi is ideal for Viper players who want to frontline. It gives him great stats across the board and the duration of Cold Attack almost perfectly overlaps Poison Attack. The combined attack speed and move speed slows of Viper's abilities and Skadi's modifier will slow any target to a crawl.
- Monkey King Bar provides magical damage on top of a solid chunk of damage and a little attack speed. It's best suited against enemy carries who are picking up evasion items and heroes with blind.
Situational items:
- Veil of Discord enhances the magical damage of Viper's entire kit as well as granting attributes and armor.
- Shadow Blade is a good pickup on Viper if you intend to seize map control. Viper is a very capable ganker if he can get close to a target. Between both of his slows and his damage scaling up as his target's health decreases, he is very good at 1v1 dueling.
- Heaven's Halberd can be an idiosyncratic yet effective choice against teams that rely on damage from 1-2 right-click heroes. Halberd stops those opponents from attacking in addition to granting status resistance and evasion.
- Sange and Yasha is a common pickup in the midgame. Viper enjoys the additional health and damage, as well as movement speed.
- Nullifier shuts down heroes who rely on items. Viper by nature struggles against mobility items like Force Staff and Blink Dagger; he is also vulnerable to disables from Orchid Malevolence and Scythe of Vyse. Nullifier also stops targets from activating Black King Bar, Glimmer Cape and other items that counteract his magic damage.
- Manta Style provides a mix of tankiness, damage, and chasing potential. Mirror Image dispels certain debuffs that cripple Viper's playstyle. Since Corrosive Skin carries over to illusions, it is moderately useful for split-pushing.
- Mjollnir is one of the best DPS items for Viper in the lategame. It accentuates his waveclear, adds more magical damage with the active as well as the passive (this damage is greatly amplified under effect of Poison Attack), and provides high attack speed to enhance Poison Attack.Alternatively,if already possessing Rod of Atos, Gleipnir should be considered.
- Heart of Tarrasque increases Viper's tankiness. Combined with Corrosive Skin and Guardian Greaves, Viper becomes incredibly hard to put down.
- Bloodthorn prevents spellcasters from using spells, as well as making your targets more vulnerable to your DPS. The mana regeneration also remedies Viper's constant lack of mana.
- Octarine Core combines well with Viper as he can output high magical damage, specifically from Nethertoxin. The spell lifesteal makes this already tanky hero even harder to kill, and stacks with his spell lifesteal talent to provide significant healing. Extra health and mana also allow Viper to live longer and cast more spells during teamfights. Finally, the cooldown reduction allows for more uses of Nethertoxin and Viper Strike, especially when paired with Aghanim's Scepter.
- Radiance is an item to consider on Viper as he is a durable hero who will survive in fight long enough to deal damage over time to his enemies. Combined with spell lifesteal, it adds to his innate tankiness and the damage also allows him to attack enemies with Poison Attack more effectively.
Dota Plus Progress[]
Main Article: Hero Challenges
Relics track a hero's actions and statistics, and display in-game notifications when a milestone is reached. They are only available to Dota Plus subscribers.
Relics | Voice Lines | |
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Bronze |
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Silver |
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Gold |
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Platinum |
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Master |
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Grandmaster |
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Equipment[]
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Trivia[]
- ▶️ "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 before Version 7.00