Quicksand hourglass is not working accordingly to the wording

Quicksand hourglass is not working accordingly to the wording. It does not activate buff each 10 seconds. It is activating buff in 5 - 5.2 seconds after buff expiration. Tested this with self-reflecting Temporal Chains by Shackles of the Wretched and buff expiration mods from Chronomancer tree. Under such conditions you should be nearly constantly under buff effect, however, between buffs there is still 5 or 5.2 seconds with Quicksand hourglass being not active.

Therefore, this ascendancy node is not working properly or wording is wrong. I guess the second case, because constant x1.5 cast speed would be ridiculously overpowered.

Please, fix!

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Zendel0#2404 wrote:

Tested this with self-reflecting Temporal Chains by Shackles of the Wretched and buff expiration mods from Chronomancer tree.

So does this allow "50% more Cast Speed" effect hang on you longer, not just 5 seconds? I'm asking because in PoE1 expiration/duration of such pendulum effects gained from ascendancies is not modifiable.

I can confirm, from my experience it does indeed prolong effect of this buff.

I am still undecided if I want to continue with this char now with mechanics working not as intended by ascendancy node wording, so my amulet is not instilled with Prolonged Assault (kinda pricey) for extra 10% slower buff expiration.

However even with 20% from ascendancy and 25% from Time Chains reflected curse duration is 45% longer and it is indeed nearing 7.5-8 seconds. Indeed, it should be 9 secondss, as 5/(1-0.2-0.25)=9.09. But I had allocated Warding Fetish notable to alliviate slow-effect drawbacks from cursing myself. Therefore, in my case, duration is 5/(1-0.2-0.25*0.7)=8. I checked duration with actual stopwatch, and had enough samples for statistics (>50). It is somekind janky and have inconsistent duration in range from 7.5-8 seconds, but effect is obvious in comparison when Time Chains not applied to me (6.25 seconds).

However, "buff cooldown" is 5 seconds on top of buff duration, and instead 8 seconds long buff each 10 seconds of time I get nearly 8 seconds of buff each 13 seconds, which is better than default, however, it does not worth all the hustle with chains and etc.

What about POE1, I do not know, but on POE wiki it says, that should work there as well as in POE2, as general buff modifiers can be modified with buff expiration rate (not skill effect duration or other types of nodes). Moreover, if the buff is recieved from actuall skill gem, not from passive node, the buff expiration, buff duration and skill effect duration should apply mutiplicatively.