So the new PTR creeping venom gives a 5% slow stacking 18 times until the target stops moving for 4 sec.
I assume it stacks automatically every second. In an RBG flag running setting this looks to be quite decent? A stacking poison slow that goes to 90% unless dispelled or stand still for 4 sec.
in BFA we had master alchemist or smth which basically was you had wound/deadly regardless. of which was equipped (got removed cause unga bunga i guess fear mongering to attack rogue players.) Master poisoner and mind numbing stand alone do very little, i checked for myself you really don’t see the difference especially as sin since you use shiv offensively anyway.