Goblin Excavator's Flute

Instrument

Item Details

Utility 27
Bonus Level 11
Dyeable No
Sellable Yes
Tradeable Yes

Restrictions

Level Required 35
Usable By
All Classes

Magical Bonuses

Basic
Acuity 18
All Casting 1
ToA
Toa Magic Damage 2%

Primary Ability

Power Regen Level 35
Charge (10 max)


Raw Item JSON

{
  "sell_value" : 97200,
  "requirements" : {
    "level_required" : 35
  },
  "bonus_level" : 11,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Watcher Kegok" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 2972,
  "utility" : 27.0,
  "delve_text" : "Realm: Albion\n \nMagical Bonuses:\n- ALL magic skills: 1 pts\n- Acuity: 18 pts\n \nLevel Requirement: 35 Level\n \nBonus to magic damage: 2%\n \nCharged Magic Ability:\n- 10 Charges\n- 10 Max\nFunction: power regen\n \nTarget regenerates power during the duration of the spell.\n \nValue: 1\nTarget: Self\nDuration: 10:00 min\nCasting time:      3.0 sec\n \n- This spell is cast when the item is used.\n \nCan use item every: 1:00 min\n \n \nBonus Level: 11\n",
  "abilities" : [ {
    "max_charges" : 10,
    "spell" : 3818,
    "magic_type" : 6,
    "power_level" : 35,
    "position" : 1
  } ],
  "salvage_amount" : 22,
  "artifact" : false,
  "material" : 38,
  "name" : "Goblin Excavator's Flute",
  "usable_by" : [ 0 ],
  "realm" : 1,
  "id" : 14823,
  "category" : 4,
  "use_duration" : 60,
  "bonuses" : [ {
    "id" : 303,
    "type" : 2,
    "value" : 1
  }, {
    "id" : 10,
    "type" : 1,
    "value" : 18
  }, {
    "type" : 9,
    "value" : 2,
    "requirement_id" : 5542
  } ],
  "ability_tags" : [ "fn_enhancement_power_regen" ]
}
How is utility calculated?