03/24/2014 10:00 AMPosted by Kanjihack[EDIT] Corrected Thunderfury's internal cooldown, it scales on attack speed and prevents the effect from proccing more than once per attack cycle, e.g. with an attack speed of one it can proc once per second, with an attack speed of 2 it should proc once every .5 seconds. The original information I had was based on second-hand research and seemed accurate at first glance.
I knew something wasn't right with what others have been saying about Thunderfury. I've been telling my friends on Teamspeak over and over (to the point they're probably sick of me saying it) that I've been getting more than 1 proc per second with it. It has a very clear visual, and against single target bosses I see it go off at least twice a second rather regularly. You also see it happen quite often in the video I posted of the build in action. It also explains why I'm able to do so much more dps with it in my Chain Lightning build than others who don't have Thunderfury but who have comparable dps. I believe this also makes it clearly the best weapon for the build, as you'd need Fulminator to proc on 5-6 mobs right away in order for it to get close to Thunderfury. Shard of Hate might compete with TF, though, but we'll have to wait to see.
Thank you so much for confirming my suspicions. Glad I don't have to hunt down a Fulminator with a socket now. :)