Okay I did a lot of testing to find out that the affixed Lighting Forged and Lifesteal are 100% not working and the affix Bleed seems to be something up with.
Lighting Forged
So for Lighting Forged I shot a group of mobs 800 times and the combat log did not show a single time that lightning forged did its job. I did this multiple times once in constant combat and once with constantly re-triggering combat. I tested this with scoundrel only. This was a test with mob group of about 4 mobs and they were close together as in the size of the mob apart at max. And most of the times almost inside each other. I know there has been said multiple times that only the visual is not in the game but this is very strong prove that it is not working at all.
Lifesteal
For lifesteal I shot a dummy about 1000 times and looked at the log. Nothing. No self heal ever. Then I did the same while being in combat with mobs and being damaged for about 300 hits. No self heal received a single time in the log. Also another extensive proved test by Rickness:
Bleed
This can be a bug or secret balance decision. Bleed is ATM on multiple classes tested not doing the 300% damage over time of the hit where it procced on. It seems to be something around 249%. Example is where it procs on the Scoundrel for 3001 damage x6. While the normal hit was 7240.
Recommendations
Please fix the Lifesteal and Lighting Forged with added visuals. Or as short term solution remove those from the affix pool because they are not working and basically trash.