Class: Assassin
Required Level: 30
Skill Tree: Shadow Disciplines
Requires: Claw Mastery, Burst of Speed, Fade
Active / Passive
Cost: 12 Mana

Poisons the Assassin's weapons.

Damage Type: Poison

Venom is an Assassin Skill in Diablo II.


Poison use is another technique an Assassin has to help even the odds when battling demons and their ilk. An Assassin who has mastered this skill secretly coats her weapons with vile toxins.

General InformationEdit


  • Gives synergy to: None
  • Receives synergy from: None

Venom caps the poisoning duration at 0.4 seconds, thus preventing long term poisoning. Consequently, all other items will only inflict poison damage for 0.4 seconds. Example: Though 700 damage over 10 seconds might seem impressive, only 28 damage will be inflicted due to the 0.4 seconds cap.

If a character who is buffed with Venom uses a physical skill that also inflicts poison (Poison Dagger for example), the duration is instead set to 0.4 seconds plus the duration of the skill itself, while the rate of damage is added to the attack. This results in a monstrous amount of damage added to the skill. For example, if a necromancer with level 15 Venom from Treachery Rune Word active uses level 25 Poison Dagger (which poisons over 11.6 seconds), the duration of the poison will be set to 12 seconds (11.6 + 0.4), and Venom will provide a total of 9150-9750 damage over that period (305/0.4*12 to 325/0.4*12).

Venom does stack with Burst of Speed or Fade (in earlier versions of the game, it was erroneously overriding Fade if cast).

Skill ProgressionEdit

Mana Cost: 12
Poison Damage is dealt over 0.4 seconds

Level 1234567891011
Poison Damage 60–80 75–95 90–110 105–125 120–140 135–155 150–170 165–185 185–205 205–225 225–245
Skill Duration 120 124 128 132 136 140 144 148 152 156 160
Level 12131415161718192025
Poison Damage 245–265 265–285 285–305 305–325 325–345 350–370 375–395 400–420 425–445
Skill Duration 164 168 172 176 180 184 188 192 196 216
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