The rogue unique item Grasp of Shadow effect summons a clone to perform a marksman or cutthroat skill when hitting a vulnerable enemy with a lucky hit chance of 20-30%. However, the effect does not trigger on core skills.
It has been tested, and only basic and agility skills have been able to trigger this effect. I have used multiple core skills, ensuring the enemies were always vulnerable and have not seen ONE clone perform a core skill attack, only basic and agility.
Can confirm, this is happening to me to.
I was so stoked to get a unique, and it doesnât work lol
Can confirm, this is happening to me to.
I was so stoked to get a unique, and it doesnât work.
It also feels to me like this unique is not behaving as described.
It does proc as expected after some testing.
However, the shadow clone seems to only exist for ~1 second
This unique needs some extra text detailing how long the clone lasts. I was hoping it would be around 5 seconds and thought it would be insane for my build but it looks like it does one skill then leaves. At least the stats are nice 
seems underwhelming to say the least.
also it seems does not work with Twisting Blades.
or description is completely invalid.
Iâm also having this issue
I canât seem to proc the unique aspect on basic or core abilities
Definitely happening to me too. Iâm still using the unique, as the stats on it allow for my double core skill build, but the aspect itself and the increase to clone damage is useless lol. I was also disappointed, as it seems really good on paper. Still wondering if my Fists of Fate would be better.
For me it does proc (puncture /penetrating shot), and sometimes the clone does one basic attack but often it does nothing just stand there for 0,5 s and disappear. Not sure whether it only procs of puncture or also from penetrating shot. It doesnât seem to copy my core skill. Also it does not proc the shadow clone skills e.g. making me unstoppable, but that might be intended. Seems pretty useless so far ;-(
Came here to bump this as I got this today and it seems to do absolutely nothing for TB. I quickly switched back to my crit gloves because the clone never seemed to be applying TB like the actual clone does.
The clone appears then dissapears⌠its useless
can confirm it doenst work, it appears for 1 sec fire 1shot and disappear despite âshadow cloneâ ultimate is active in skill bar. Either the ânot my jobâ culture is deep rooted or they are busy with sth else which u know that got reported on news some times ago.
Over a month later and I just got this drop. TB build.
Clones appear, stand for a sec or two, and then vanished.
How is this not fixed?
Same problem, its just not working in S1 it seems for me, playing Twisting Blades.
How is this bugged for so long, I thought that would be some new bug in S1 and then find this months old threadâŚ
Now we not only have 90% totally useless uniques in the game, but the ones which at least sound ok just donât work⌠Very Frustrating!
Doesnt work for me either, bit of a let down
Same for me 
Not working as mentioned with Twisting Blades.