How does Deep Wounds, the passive, work?

https://imgur.com/Aizwh1x


Hypothetically, if my bleed duration is 4 seconds, does that mean that this passive never works? I am wondering if it only aggravates singular instances of bleed which are over 4 seconds, or does it require the target to have been continiously bleeding for over 4 seconds and then you just aggravate any bleeding on them?

From a long time 🩸 builder who doesn’t use the internet. Just from my knowledge and testing, each bleeding debuff, each time you inflict bleed in other words, can be aggravated from whatever sources you have of them. If you had jagged ground aggra and a empowered aggravate, and got the 3 nodes before the aggravate on any bleeds older than 4 seconds it would be 7 seconds and any bleeds older than 4 would be aggravated til the 7seconds or whatver your duration is.
I’m not sure others views on deep wounds but I typically set my main damager to other toes of aggravates and then also get that node to be like a guarantee aggravate in case the others which are all 20percent chances to aggravate dont proc. The thing is tho, if your going for quick powerful bleeds then extending the duration maybe wouldn’t necessarily give you that desired effect. Just came across your post thought I’d try to help.
Just remember each bleed is a bleed debuff and can be aggravated seperately. Otherwise the strongest bleed is what it goes with.
Hopefully I don’t have much of that wrong. If someone else thinks so please correct me bc that’s how I understand it and build mine. I go for aggravted over crits even. Anyways I hope this helps somewhat for you.