Proc Mechanics - Thunderfury, Blessed Blade of the Windseeker

I got all information from Druin's post.
http://us.battle.net/d3/en/forum/topic/12506331470

General Inforamtion about procs

Item procs do not appear to proc Area Damage.
Item procs do not appear to be able to proc other item procs.


Thunderfury, Blessed Blade of the Windseeker

Chance on hit to blast your enemy with Lightning, dealing 279 - 372% weapon damage as Lightning and then jumping to additonal  nearby enemies. Each enemy hit has their attacp speed and movement speed reduced by 30% for 3 seconds. Jumps up to 5 targets.

Mechanics Thunderfury Proc

does listed %damage.
hits target you are attacking.
will proc with either weapon when dual-wielding and uses active weapon to determine proc damage.
hits up to 5 targets one of which is always the target being attacked.
has an internal cooldown of 1/APS
does not scale with +% lightning damage


Analysis Thunderfury
The proc of Thunderfury makes this weapon so powerful, therefore you want a high %damage of the procc. (range 279-372%) It provides a very good amount of aoe damage. Furthermore it provides a defensive debuff on monsters.

With a guranted socket, you will only hope for the right stat (dexterity, strength or intelligence) and for %damage or attack speed. Then you can reroll the damage of the Thunderfury.

 

I only have a bad rolled Thunderfury which has Strength and low % proc damage. I wanted to use it for my monk, so I decided to reroll strength. But a bad Thunderfury is better then no Thunderfury.