Venomous Star - doing it wrong?

Actually no, it only last 3 sec even at max. Fiels module says 8 sec but that aint how it is for some reason.

If it only lasts 3 seconds, and can only be used a maximum of 3 times per monster, surely it is a completely useless skill? There must be something wrong here...

Nexon are notorious for getting skill descriptions wrong. If the extractions say it is 4 seconds at lv 6 then that is what it is...no matter what it says when you hover your mouse over the skill description.

Ah but when I test the skill, it only lasts for 3 seconds, so in this case the description is right.