Viper

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Viper
Viper icon.png
Strength attribute symbol.png
Agility attribute symbol.png
Intelligence attribute symbol.png
20 + 2.4
21 + 2.9
15 + 1.8
Level 0 1 15 25 30
Health 200 600 1260 1740 1980
Health regen 0 2 5.36 7.76 8.96
Mana 75 255 555 771 879
Mana regen 0.01 0.76 2.02 2.92 3.37
Armor -1 2.36 8.86 13.5 15.82
Att/sec 0.59 0.71 0.95 1.12 1.21
Damage 23‒25 44‒46 84‒86 113‒115 128‒130
Magic resistance 25%
▶️ Movement speed 285
▶️ Attack speed 100
Turn rate 0.4
Vision range 1100/800
Attack range 575
Projectile speed 1200
Attack animation 0.33+1
Base attack time 1.7
Damage block 0
Collision size 24
Legs 0


Hero stats changes: Day vision range reduced from 1800 to 1100. No other changes.

Abilities[edit]

Poison Attack
Poison Attack icon.png
Affects
Enemies
Damage
Magical
Intensifies Viper's venom, adding an effect to his normal attack that slows attack and movement speed while dealing damage over time.
Cast Range: 600 (Talent Expression error: Missing operand for +.)
Damage per Second: 10/16/22/28
Move Speed Slow: 10%/20%/30%/40%
Attack Speed Slow: 10/20/30/40
Duration: 2
Cooldown: 0
Mana: 20
Does not pierce spell immunity. Slow persists and attempts to damage if debuff was placed before spell immunity and when not dispelled.
Modifiers
Debuff Poison Attack Slow: Dispellable with any dispel.
The Netherdrake's inborn toxic breath quickly drains the vitality of its afflicted.

Notes:

  • Modified values: None.
  • Casting Poison Attack manually uses the 600 (Talent Expression error: Missing operand for +.) cast range. Attacking normally with Poison Attack on autocast uses Viper's default (Talent Expression error: Missing operand for +.) attack range.
  • Deals damage in 1 second intervals, starting 1 second after the debuff is applied, resulting in 2 damage instances.
  • Successive casts of Poison Attack on the same target do not stack, only the debuff gets refreshed.


Nethertoxin
Cannot be used by illusions. Disabled by Break. Pierces spell immunity.
W
R
Nethertoxin icon.png
Ability
Passive
Affects
Enemies
Damage
Physical
Nethertoxin causes Viper's normal attack to deal bonus damage to units based on how much health they are missing. The bonus damage doubles for each 20% of health missing from the target. Nethertoxin deals half damage to creeps and buildings.
Base Hero Attack Damage Bonus: 3/6/9/12
Base Non-Hero Attack Damage Bonus: 1.5/3/4.5/6
Maximum Hero Attack Damage Bonus: 48/96/144/192
Maximum Non-Hero Attack Damage Bonus: 24/48/72/96
Poison from the Nether Reaches turns wounds into fatalities, and fatigue into death.

Notes:

  • Modified values: None.
  • The bonus damage is dealt in one instance together with the attack damage, and counts as attack damage as well.
    • It can be lifestealed off of, and is considered by crit or cleave.
    • It is not affected by percentage-based attack damage bonuses or reductions, but can be reduced with flat reductions.
  • Nethertoxin checks the attack target's health as the attack begins, not as the projectile is launched or hits.
  • This is how much damage Nethertoxin deals on each level against heroes (and non-heroes) at certain health percentages:
    • 100%–80% Health: 3/6/9/12 (1.5/3/4.5/6)
    • 80%–60% Health: 6/12/18/24 (3/6/9/12)
    • 60%–40% Health: 12/24/36/48 (6/12/18/24)
    • 40%–20% Health: 24/48/72/96 (12/24/36/48)
    • 20%–0% Health: 48/96/144/192 (24/48/72/96)


Corrosive Skin
Corrosive Skin icon.png
Ability
Passive
Affects
Self / Enemies
Damage
Magical
Viper exudes an infectious toxin that damages and slows 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%
Damage per Second: 10/15/20/25
Move Speed Slow: 10%/15%/20%/25%
Attack Speed Slow: 10/15/20/25
Duration: 4
Does not pierce spell immunity. Slow persists and attempts to damage if debuff was placed before spell immunity and when not dispelled.
Modifiers
Debuff Corrosive Skin Slow: Dispellable with any dispel.
It is not unusual for sword and shield alike to corrode in the very hands of those who attack the Netherdrake.

Notes:

  • Modified values: None.
  • Magic resistance stacks multiplicatively with other sources of magic resistance.
  • Increases Viper's total base magic resistance to Lua error in Module:Calculate at line 35: Missing operand for - in expression "( 1-(1-10/100)*(1-) )*100"..
  • The damage and slow debuff is applied to whoever damages Viper within 1400 range of him.
  • Corrosive Skin's damage has the no-reflection flag, preventing its damage from interacting with other sources of damage with the same flag.
  • Only reacts on the 3 damage types. Does not react on damage flagged as HP Removal.
  • Damage dealt by abilities that use an independent source of damage (e.g. Proximity Mines, Death Ward) does not trigger Corrosive Skin on the caster.
  • Deals damage in 1 second intervals, starting 1 second after the debuff is applied, resulting in 4 damage instances.
  • Successive procs of Corrosive Skin on the same target do not stack, only the debuff gets refreshed.


Viper Strike
Viper Strike icon.png
Affects
Enemies
Damage
Magical
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 Animation: 0.3+0.53
Cast Range: 500 (Upgradable by Aghanim's Scepter. 900)
Damage per Second: 60/100/145 (Talent Lua error in Module:Calculate at line 35: Missing operand for + in expression "60+".)
Move Speed Slow: 40%/60%/80%
Attack Speed Slow: 40/60/80
Duration: 5
Cooldown: 50/40/30 (With Aghanim's: 10)
Mana: 125/175/250 (With Aghanim's: 125)
Aghanim's upgrade: Decreases mana cost and cooldown, and increases cast range.
Blocked by Linken's Sphere. Blocked upon impact.
Modifiers
Debuff Viper Strike Slow: Undispellable.
Once used to slay his sadistic summoner, the most powerful of Netherdrake infections spreads through the veins of those foolish enough to cross Viper.

Notes:

  • Modified values: None.
  • Viper Strike's projectile travels at a speed of 1200.
  • The slow decreases over time. Hit 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 translates 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 300/500/725 (Talent Lua error in Module:Calculate at line 35: Unexpected < operator in expression "<strong class="error"><span class="scribunto-error" id="mw-scribunto-error-1">Lua error in Module:Calculate at line 35: Missing operand for + in expression &quot;60+&quot;.<*5".) 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 spell is being cast.


Talents[edit]

Hero Talents
+80 Viper Strike DPS25+20 Armor
+75 Attack Range20+6 Mana Regen
+16 Agility attribute symbol.png Agility15+15 Strength attribute symbol.png Strength
+175 Health10+15 Damage
Notes:
  • Upgrading health increases maximum health capacity and keeps the current health percentage.
  • The armor and attack damage are added as bonus armor and bonus attack damage, and therefore do not benefit illusions.
  • The mana regen is added as a bonus and does not benefit illusions.
  • The attack range talent also affects the cast range of Poison Attack.
  • The health talent increases maximum health capacity, and keeps the current health percentage.
  • This attack damage talent is added as raw attack damage, so it does not benefit illusions, and is not affected by most percentage-based damage increasing or reducing effects.

Patch history[edit]

Patch
Description
  • Added to Siltbreaker.