# 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 . 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