I know corruption items are new. Got super lucky and got two items, both with twilight devastation on them (both are 25 corruption each, so they are manageable).
Do they stack? The proc chance and damage doubled, or each has they own chance? So 1 goes off, doing it’s thing and then a micro second later (RNG possibility) the next one goes off? Or will they simply double the damage/proc chance? Anyone know?
My understanding is damage is combined but proc rate should stay unchanged.
source a few players that do more theorycrafting than me. So, yeah.
Why dont you equip them, head to a training dumby and share your results with us because im curious
who is to say it will work. Infinite stars for example does NOT work on dummies.
Well twighlight devastation does work on them. At least for me it did proc like normal.
My stars works on dummies on two different characters…Are people experiencing this?
Maybe it finally got fixed?
i’ve only tried it on the dummies in dazar’alor. for me, stars only proc on the “tanking dummy” for some reason in there. the little “damage” AoE dummies, raider damage dummy, and pvp dummy: no procs.
i’m afraid i’m in there right now testing out my spriest’s new gear, (on thrall server actually, lol) so i don’t think so.
i’m getting semi-decent numbers off the tank dummy though 
edit: …okay. so, do NOT test your Stars procs on the tanking dummy if you’re melee and not an actual tank. 
ouch. lesson learned, lol.
They stack damage but not proc rate as far as I know. That seems to be the case with Infinite Stars at least.
I just checked all the dummies in the middle spot on the org wall… and… no procs of stars. So, I guess I’m an idiot. But, yeah, confirming what these 2 are saying about stars on dummies.
So been running with both pieces on for a while and the damage has for sure doubled. Proc chance is more iffy, but I would say the proc chance is the same.