errr...was using PA yesterday...
threads
bfury
hyperstone
crystalys
mask of madness
in the case of orb effects, skills overwrite items.
in the case of passive skills (bash, critical), they can both stack
together.
anyway, while using PA yesterday i had 2 different critical
damages, and if any of your cannot figure it out, one was from coup
whatever and the other was from my crystalys.
then there was one incident where i saw 2 critical damages come out
together. didn't bother to make out what it was, but again, any
idiot could figure out that both of them were from my crystalys and
coup de grace
BUT
only one of them had effect. which one it was...i have no
idea.