Shield: "With every blow, a poisonous cloud appears around the victims"

[Anxwi]

Characteristics of the shield "With every blow, a poisonous cloud appears around the victims"... what does it do? It creates a cloud of poison after: Hitting an enemy, hitting with a main weapon, using a shield?
P.S.: Sorry if I have incorrectly translated the characteristics of the shield into English

[Gatebase]

The English affix is "Victims release a toxic cloud with each hit", which isn't really much more helpful than your translation. I think the "hit" refers to the item with the affix (here the shield) doing damage to an enemy (for example by parrying). No affix should ever affect another weapon or skill (eg a shield with damage bonus will not make your sword more powerful), it's all self-contained. If you want a synergy you can use your shield to poison enemies and if your weapon has "+80% damage to a Poisoned target" you will do a lot more damage now.