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Ashtongue Talisman of Insight

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SourceEdit

This item is a reputation reward; you must be Exalted with Ashtongue Deathsworn to purchase it for 28Gold 81Silver 56Copper from Okuno <Ashtongue Deathsworn Quartermaster> in Black Temple.

NotesEdit

  • This trinket has no hidden internal cooldown.

Effective Spell HasteEdit

The effective Spell Haste granted by this trinket is calculated in a fashion somewhat similar to the Sextant of Unstable Currents and Shiffar's Nexus-Horn. In essence, to get the most out of this Trinket, it is desirable to have short cast times coupled with high crit. chance.

The formula for calculating how much Spell Haste one can expect from this trinket on average is as follows:

E = 145 * (6 / (t / (0.5 * c)))

Where...

E = effective +spell haste
t = cast time
c = critical strike chance

The following Java program can be used to obtain a table of expected +haste for different cast times:

  public static void main(String[] args)
  {
      float crit;
      float time;
      float effective;
      for(time = 1; time < 3.5f; time += 0.5f)
      {
          for(crit = 20; crit < 55; crit += 5)
          {
              effective = 145 * (6 / (time / (0.5f * (crit / 100))));
              System.out.println("<tr><th>" + crit + "</th><th>" + time + "</th><td align=\"center\">" + effective + "</td>");
          }
      }
  }
  • 1.0s - Arcane Missile(Each missile)
Base Crit %Cast TimeEffective +Haste
20.01.087.0
25.01.0108.75
30.01.0130.5
35.01.0152.25
40.01.0174.0
45.01.0195.74998
50.01.0217.5
  • 1.5s - Scorch
Base Crit %Cast TimeEffective +Haste
20.01.558.0
25.01.572.5
30.01.587.0
35.01.5101.50001
40.01.5116.0
45.01.5130.5
50.01.5145.0
  • 2.5s - Frostbolt
Base Crit %Cast TimeEffective +Haste
20.02.534.8
25.02.543.5
30.02.552.2
35.02.560.9
40.02.569.6
45.02.578.299995
50.02.587.0
  • 3.0s - Fireball
Base Crit %Cast TimeEffective +Haste
20.03.029.0
25.03.036.25
30.03.043.5
35.03.050.750004
40.03.058.0
45.03.065.25
50.03.072.5

An important thing to note is that given a high enough Critical Strike chance, coupled with a low enough Cast Time, it is possible that the time required to proc this trinket is shorter than it's duration, in which case the Trinket is perpetually up - in the tables above, such a state is represented by the effective +Haste being >= 145.

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