Spellbound Indigo Drum

Instrument

Item Details

Utility 49
Bonus Level 25
Dyeable No
Sellable Yes
Tradeable Yes

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Strength 21
Thrust Resist 5%
Body Resist 5%
Instruments 3

Raw Item JSON

{
  "sell_value" : 48114,
  "bonus_level" : 25,
  "sources" : {
    "stores" : [ "Alb Aurulite 49" ]
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 2977,
  "utility" : 49.0,
  "delve_text" : "Realm: Albion\n \nMagical Bonuses:\n- Instruments: 3 pts\n- Strength: 21 pts\n- Thrust: 5%\n- Body: 5%\n \n \n \nBonus Level: 25\n",
  "salvage_amount" : 5,
  "artifact" : false,
  "material" : 71,
  "name" : "Spellbound Indigo Drum",
  "usable_by" : [ 0 ],
  "realm" : 1,
  "id" : 45836,
  "category" : 4,
  "bonuses" : [ {
    "id" : 98,
    "type" : 2,
    "value" : 3
  }, {
    "id" : 0,
    "type" : 1,
    "value" : 21
  }, {
    "id" : 3,
    "type" : 5,
    "value" : 5
  }, {
    "id" : 16,
    "type" : 5,
    "value" : 5
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?