Sextant of Unstable Currents

Sextant of Unstable Currents is an epic trinket for DPS casters.
== Source ==
This item drops from Fathom-Lord Karathress in Serpentshrine Cavern.
==Notes==
*There is an internal cooldown that prevents this trinket from proccing more than once every 45 seconds.
*The proc chance is 20%.
==Effective Damage==
The effective +damage granted by this trinket is achieved in a method almost identical to that of Shiffar's Nexus-Horn. Essentially, to get the most out of this trinket, you want shorter cast times, and higher crit.
The formula for calculating the amount of effective +damage granted by Sextant of Unstable Currents is -
 E = 190 * 15 / (45 + (t / (0.2 * c)))
Where...
 E = effective +damage
 t = cast time
 c = critical strike chance
The following Java Program can be used to obtain a table of effective +damage for different casting speeds:
 public static void main(String[] args)
 {
 float crit;
 float time;
 float effective;
 for(time = 1; time < 6.5f; time += 0.5f)
 {
 for(crit = 10; crit < 101; crit++)
 {
 effective = 190 * 15 / (45 + (time / (0.2f * (crit / 100))));
 System.out.println("" + crit + "" + time + "" + effective + "");
 }
 }
 }
* 1.5s - Scorch, Searing Pain, Wrath
Base Crit %Cast TimeEffective
 +Damage
20.01.534.545456
25.01.538.0
30.01.540.714287
35.01.542.903225
40.01.544.705883
45.01.546.216217
50.01.547.5
* 2.0s - Lightning Bolt
Base Crit %Cast TimeEffective
 +Damage
20.02.030.0
25.02.033.52941
30.02.036.38298
35.02.038.737865
40.02.040.714287
45.02.042.396694
50.02.043.846153
*2.5s - Frostbolt, Shadowbolt, Incinerate
Base Crit %Cast TimeEffective
 +Damage
20.02.526.511627
25.02.530.0
30.02.532.884617
35.02.535.309734
40.02.537.37705
45.02.539.160305
50.02.540.714287
* 3.0s - Fireball
Base Crit %Cast TimeEffective
 +Damage
20.03.023.750002
25.03.027.142857
30.03.030.0
35.03.032.439022
40.03.034.545456
45.03.036.382977
50.03.038.0
==External links==
Category:Serpentshrine Cavern items