get 30% increased damage 1 minute

hey guys, i was herbing around on my druid when i got attacked and noticed this debuff:

Zijin Sting (stacks to 15)

Infects the victim with a poison that increases all damage received by 3% but increases damage dealt 2% for 1 min. The victim will be unable to stealth due to the purple glow they eminate for the duration of the effect.

Zijin Sting - Spell