Adder's Touch

Adder's Touch is a notable passive skill grants increased critical strike multiplier with daggers. In addition, critical strikes with daggers inflict poison.

Poison damage caused by this keystone deals chaos damage equal to 10% of the damage done by the hit per second, for 2 seconds.

Passive Mechanics and Interactions

Buff/Debuff duration passives and skill duration passives don't work with Adder's Touch. The poison in this case is treated as a status effect like burning, so is not affected.

Each hit dealt by Adder's touch replaces all previous instances of Adder's Touch. Furthermore, it also replaces the poison created by poison arrow.

The damage over time is applied every frame (not once every second, for example). Thus hitting multiple times within one second will still cause poison damage.

Elemental damage and chaos damage from the hit is included in the total damage thus increasing poison damage dealt.

Poison damage from Adder's touch stacks with Viper Strike charges.

Adder's touch effect applies to anything taking critical weapon damage from a dagger. Including things like Lightning Strike projectiles.

Adder's touch poison damage is not affected by "% increased Chaos Damage" from skills and passives.