I figure someone in EJ must have both. I'd really like to know before I roll on it and possibly dick someone out of it if I can't make much use of it. I'm thinking using both of these would be utterly insane.

http://wow.allakhazam.com/db/item.html?witem=19950

They stack I think, :O

Yes, AFAIK, they stack.

Yes, Slug will probably be dying every boss fight now.

They do not share timers, it is confirmed.

(One shot shadow bolts inc.)

wubwub, youre not retired anymore. take that off of your profile info.

% Crits stacked with that ZG trinket alone would make me into a walking timebomb. No caster is gonna want to stand next to me ever again if I'm allowed to get my hands on the thing. :(

This is the one from the voodoo doll quest, right? Cause I've got my voodoo doll and just need to collect the other parts. Maybe I'll get lucky tomorrow's run and have a new toy to murder myself with in BWL on Sunday...

Slug powers up!
Zibro powers up...BAM!
"Zibro's shadowbolt hits Overseer for WHOOPSDAMN!"
Zibro has died.
"Your shadowbolt crits Overseer for WTFLOL!"
Slug has died.

/drool

Also, Zibro will continue to die first because he is better geared. Having Zibro on a raid means I get at least 5 extra seconds to kill something before I die horribly.

The Hero Charm is from turning in Hakkar's heart. It is the Dragonslayer Ring of ZG.