Elemental Focus Stone

Elemental Focus Stone drops from Auriaya in the 10-man version of Ulduar.
==Notes==
* This item has a 10% proc chance.
* This item has a hidden internal cooldown of 45s.
== Effective Haste ==
The effective haste granted by this item is affected primarily by cast time. This trinket benefits more from shorter cast times.
The formula for calculating the amount of effective haste granted by this trinket is:
 E = 522 * 10 / (45 + (t / 0.1))
Where:
 E = effective +haste
 t = cast time
The following Java Program can be used to obtain a table of effective +haste for different cast times.
 public static void main(String[] args)
 {
 float time;
 float effective;
 
 for(time = 1; time < 6.5f; time += 0.5f)
 {
 effective = 522 * 10 / (45 + (time / 0.1f));
 System.out.println("" + time + "" + effective + "");
 }
 }
This gives the results below:
Cast TimeEffective +Haste
1.094.90909
1.587.0
2.080.30769
2.574.57143
3.069.6
3.565.25
4.061.411766
4.558.0
5.054.94737
5.552.2
6.049.714287
== Patch changes ==
* 
== External links ==
Category:Ulduar items