https://maxroll.gg/d2/resources/poison-damage#poison-length-reduced-(plr)-header
Poison Length Reduced (PLR)
This Stat, which only Characters, Mercenaries, and Units which wear Items have access to, reduces Length of Poison applications.
Poison Length Reduced has a minimum value of -100%, and no maximum.
PLR of >99% causes the first Frame of Poison Bit Rate to apply to the attack, but no Poison Length is applied.
-100% PLR doubles the Length of any applied Poisons. This doubles the total damage dealt, if the entire Length runs its course.
Characters and Mercenaries have a cap of 75% PLR.Difficulty penalties for PLR:
-40% in Nightmare
-100% in Hell
PLR is checked during Poison Length application, and is not affected by changing its value during the Length.
PLR is reduced by -xx% Enemy Poison Resistance.
Example: A Unit with 75% PLR, targeted by a source with -50% Enemy Poison Resistance, has an effective PLR of 25%.
Cleansing Aura has a unique PLR function. It applies its value of PLR, every 2 seconds, without any Difficulty penalties or cap.
Percentage % PLR = min(30 + [60 * [ (110*slvl) / (slvl+6) ] / 100] , 90)
Skill Level 1 = 39% PLR
If we have a Poison Length of 50 seconds, after equipped PLR, and our Cleansing Aura begins reducing 2 seconds into this Length, the reductions would be:
48 seconds * (1 - .39 PLR) = 29.28 seconds remaining
27.28 seconds * (1 - .39 PLR) = 16.64 seconds remaining
14.64 seconds * (1 - .39 PLR) = 8.93 seconds remaining
6.93 seconds * (1 - .39 PLR) = 4.227 seconds remaining
2.227 seconds * (1 - .39 PLR) = 1.358 seconds remaining
So the 50-second Poison Length, only lasts for 11.358 seconds with Level 1 Cleansing Aura active.
Enjoy some reading :)
Enjoy some mathematics ... -100 + 75 = -25 . To reach 75 in hell you need an extra 100% .... So you can stack up to 175 % on a character . Let me know boss. And you can stack it even more if you add the lower résistance curse and other shit sources of -xx% TO TARGET POISON RESISTANCE