Creeps
Unit Changes
Neutral Stats
Neutral Abilities
Items
Item ChangesMana ItemsItem Dynamics
Heroes
Hero ChangesHero StatsHero LabAoE IncreaseHero Dynamics
Terrain
TerrainTerrain Stats
Structures
Viper
Viper

Patch 7.41c06.05.2026-1.38 (1.38)

Abilities

Nosedive

Nosedive

  • NERFCooldown increased from 20s to 25s+25%

Patch 7.4124.03.2026+2.79 (5.58)

GENERAL

  • BUFFAgility gain increased from 2.7 to 2.9+7%
  • NERFBase Attack Speed decreased from 120 to 110-8%

Abilities

Predator

Predator

  • BUFFBase Damage per Missing Health Percentage increased from 0.15 to 0.25+67%
Corrosive Skin

Corrosive Skin

  • NEWAghanim's Scepter now also gradually increases Corrosive Skin's magic resistance and damage per second while he is in Nethertoxin, up to 50% increased effect after 4s

Talents

  • SWAPLevel 10 Talent: +10% Poison Attack slow/damage replaced with +15 Corrosive Skin Damage Per Second?TalentLevelValueCorrosive Skin Damage Per Second15 → 10+20 → +15 −25%
  • SWAPLevel 15 Talent: +20 Corrosive Skin Damage Per Second replaced with +15% Poison Attack Slow / Damage ?TalentLevelValueCorrosive Skin Damage Per Second15 → 10+20 → +15 −25%
  • SWAPLevel 15 Talent: +30 Nethertoxin Min/Max Damage replaced with +20/40 Nethertoxin Min/Max Damage
  • BUFFLevel 20 Talent: Predator Damage Per Missing Health increased from +0.3 to +0.35+17%

Patch 7.40c22.01.2026-0.36 (1.21)

Abilities

Corrosive Skin

Corrosive Skin

  • NERFDamage per second rescaled from 8/16/24/32 to 10/15/20/25+25%-6%-17%-22%

Talents

  • BUFFLevel 20 Talent: Predator Damage Per Missing Health increased from +0.25 to +0.3+20%
  • NERFLevel 20 Talent: Viper Strike DPS decreased from +80 to +70-12%

Patch 7.40b23.12.2025-1.01 (1.51)

Facets

Caustic Bath

  • NERFMax bonus effect decreased from 100% to 75%-25%

Talents

  • SWAPLevel 10 Talent: +20 Corrosive Skin Damage Per Second replaced with +10% Poison Attack Slow/Damage?TalentLevelValuePoison Attack Slow/Damage15 → 10+15% → +10% −33%+20 Corrosive Skin Damage Per Second10 → 15same
  • SWAPLevel 15 Talent: +15% Poison Attack Slow/Damage replaced with +20 Corrosive Skin Damage Per Second?TalentLevelValue+20 Corrosive Skin Damage Per Second10 → 15samePoison Attack Slow/Damage15 → 10+15% → +10% −33%
  • NERFLevel 15 Talent: Nethertoxin Min/Max Damage decreased from +40 to +30-25%

Patch 7.4016.12.2025+0.08 (1.37)

Facets

Caustic Bath

  • NERFTime to max effect increased from 4s to 5s+25%

Abilities

Poison Attack

Poison Attack

  • BUFFMana Cost decreased from 22 to 20-9%

Talents

  • BUFFLevel 20 Talent: Predator Damage Per Missing Health increased from +0.2 to +0.25+25%

Patch 7.39e02.10.2025+0.44 (0.44)

Abilities

Corrosive Skin

Corrosive Skin

  • BUFFAttack Slow increased from 8/16/24/32 to 9/18/27/36+12%

Patch 7.39d05.08.2025+2.12 (2.12)

Abilities

Nethertoxin

Nethertoxin

  • BUFFMin DPS increased from 15/20/25/30 to 15/25/35/450%+25%+40%+50%

Patch 7.3922.05.2025+0.79 (0.79)

Abilities

Poison Attack

Poison Attack

  • BUFFMana Cost decreased from 24 to 22-8%
Viper Strike

Viper Strike

  • BUFFAttack Slow increased from 80/120/160 to 100/140/180+25%+17%+12%

Patch 7.3819.02.2025+0.46 (0.95)

Abilities

Nosedive

Nosedive

  • NEWNow also releases Nethertoxin upon landing?Multiple Nethertoxins do not stack

Talents

  • SWAPLevel 10 Talent: +4% Poison Attack Magic Resistance Reduction replaced with +1s Viper Strike Duration
  • SWAPLevel 25 Talent: Become Universal replaced with Nethertoxin Radius increases by 25 every 0.5s

Patch 7.37b14.08.2024-0.88 (1.73)

Abilities

Predator

Predator

  • NERFBonus damage is now decreased by the illusion damage reduction amount if applied by illusions
  • NERFDamage per missing health decreased from 0.25 + 0.05 per Viper's level to 0.15 + 0.05 per Viper's level-33%start-6%end

Talents

  • SWAPLevel 15 Talent: +20 Corrosive Skin Attack Speed Slow replaced with +15% Poison Attack slow/damage?TalentLevelValuePoison Attack slow/damage20 → 15+20% → +15% −25%
  • SWAPLevel 20 Talent: +20% Poison Attack slow/damage replaced with +0.2 Predator Damage per missing health ?TalentLevelValuePoison Attack slow/damage20 → 15+20% → +15% −25%

Patch 7.3731.07.2024+1.13 (1.66)

Abilities

Predator

Corrosive Skin→Predator

  • NEWNew innate ability.
Passive
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
4s
Attack slow
3/6/14/22/30
Magic resistance
5/10/15/20/25%
Damage per second
3/6/14/22/30
Radius
1200
→
Passive
Viper's attacks deal an additional instance of physical damage per missing health percentage of the target hero, equal to 0.25 + 0.05 per Viper's level.
Damage per missing health
0.25
Damage per level
0.05
  • MISCNew Innate ability. Passive, can't be leveled up
  • MISCViper'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
Corrosive Skin

Corrosive Skin

  • BUFFAttack Slow rescaled from 3/6/14/22/30 to 8/16/24/32+33%+14%+9%+7%
  • BUFFDamage per second rescaled from 3/6/14/22/30 to 8/16/24/32+33%+14%+9%+7%
  • NERFNo longer an innate ability. Magic Resistance rescaled from 5/10/15/20/25% to 10/15/20/25%?Levels 1-4 unchanged; the 5 it had at level 0 as an innate is gone (now a basic ability)