Abyssal Rune

1 Source
2 Notes
3 Effective Spell Power
4 External links

SourceEdit

This item is found within the Trial of the Champion in both Eadric's Cache and Confessor's Cache.

NotesEdit

This item has a 25% proc chance.
This item has a hidden internal cooldown of 45s.
The definition of "harmful spell" is rather broad, and includes passive spell damage from buffs such as Thorns and Molten Armor, as well as non-combat actions related to quests (like picking up chickens for Chicken Party!).

Effective Spell PowerEdit

The effective spell power 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 spell power granted by this trinket is:

E = 590 * 10 / (45 + (t / 0.25))

Where

E = effective +spell power 
t = cast time

The following Java Program can be used to obtain a table of effective +spell power for different cast times.

  public static void main(String[] args)
  {
      float time;
      float effective;

      for(time = 1; time < 6.5f; time += 0.5f)
      {
              effective = 590 * 10 / (45 + (time / 0.25f));
              System.out.println("<tr><th>" + time + "</th><td align=\"center\">" + effective + "</td></tr>");
      }
  }

This gives the results below: