Renvek's Spellcrafting Helm

Other Helm

Item Details

Utility 10
Bonus Level 5
Dyeable Yes
Sellable No
Tradeable No

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Strength 15

Raw Item JSON

{
  "sources" : {
    "quests" : [ "[For Renvek] Finders Seekers", "[For Renvek] Finders Seekers", "[For Renvek] Finders Seekers" ]
  },
  "bonus_level" : 5,
  "flags" : {
    "dyable" : true,
    "emblemizable" : false,
    "no_sell" : true,
    "no_trade" : true
  },
  "icon" : 1288,
  "utility" : 10.0,
  "delve_text" : " \n  (NOTE: This is a crafting tool. Wearing this item while crafting will provide the bonuses below. Each item crafted will reduce the charges left. Unlike most crafting tools, this item is rechargeable.\n)\nMagical Bonuses:\n- Strength: 15 pts\n \nBonus to frequency of crafting skill gain: 100%\n(Spellcraft)\nBonus to speed of crafting: 25%\n(Spellcraft)\n \nCharged Magic Ability:\n- 90 Charges\n- 90 Max\n \nCannot be traded to other players.\nCannot be sold to merchants.\n \nBonus Level: 5\n",
  "slot" : 1,
  "artifact" : false,
  "material" : 0,
  "name" : "Renvek's Spellcrafting Helm",
  "usable_by" : [ 0 ],
  "realm" : 0,
  "dye_type" : 0,
  "id" : 15897,
  "category" : 8,
  "bonuses" : [ {
    "id" : 13,
    "type" : 26,
    "value" : 100
  }, {
    "id" : 13,
    "type" : 25,
    "value" : 25
  }, {
    "id" : 0,
    "type" : 1,
    "value" : 15,
    "requirement_id" : 5542
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?