Hero of Thidranki's Harp

Instrument

Item Details

Utility 23
Bonus Level 13
Dyeable Yes
Sellable No
Tradeable Yes

Restrictions

Level Required 20
Usable By
All Classes

Magical Bonuses

Basic
Acuity 12
All Casting 3

Primary Ability

Replenish Power Level 20
Charge


Raw Item JSON

{
  "requirements" : {
    "level_required" : 20
  },
  "bonus_level" : 13,
  "sources" : {
    "stores" : [ "ALB Thidranki BP Store1" ]
  },
  "flags" : {
    "dyable" : true,
    "emblemizable" : false,
    "no_sell" : true
  },
  "icon" : 3688,
  "utility" : 23.0,
  "delve_text" : "Realm: Albion\n \nMagical Bonuses:\n- ALL magic skills: 3 pts\n- Acuity: 12 pts\n \nLevel Requirement: 20 Level\n \n \nMagical Ability:\nFunction: replenish power\n \nReplenishes the target's power pool.\n \nAmount: 35%\nTarget: Self\nCasting time: instant\n \n- This spell is cast when the item is used.\n \nCan use item every: 10:00 min\n \nCannot be sold to merchants.\n \nBonus Level: 13\n",
  "abilities" : [ {
    "spell" : 638,
    "magic_type" : 6,
    "power_level" : 20,
    "position" : 1
  } ],
  "salvage_amount" : 24,
  "artifact" : false,
  "material" : 36,
  "name" : "Hero of Thidranki's Harp",
  "usable_by" : [ 0 ],
  "realm" : 1,
  "dye_type" : 0,
  "id" : 50603,
  "category" : 4,
  "use_duration" : 600,
  "bonuses" : [ {
    "id" : 303,
    "type" : 2,
    "value" : 3
  }, {
    "id" : 10,
    "type" : 1,
    "value" : 12
  } ],
  "ability_tags" : [ "fn_power_heal" ]
}
How is utility calculated?