Crossbow of the Blackheart

Weapon Crossbow Two Handed

Item Details

Utility 54.67
Bonus Level 30
Dyeable No
Sellable Yes
Tradeable Yes
Damage Info
DPS 15.3
Speed 5.2
Base Quality 97%

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Dexterity 9
Slash Resist 4%
Quickness 16
Crossbow 4
ToA
ToA Overcap - Quickness 5

Raw Item JSON

{
  "sell_value" : 31491,
  "type_data" : {
    "damage_type" : 5,
    "left_handed" : 0,
    "dps" : 15.3,
    "base_quality" : 97,
    "range" : 1250,
    "two_handed" : 1,
    "skill_used" : 91,
    "clamped_dps" : 15.3,
    "speed" : 5.2
  },
  "bonus_level" : 30,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Mikolas", "Wizard Lichas", "Shade of Uther Pendragon", "Shade of Ambrosius Aurelianus", "Lifeblighter", "High Priestess Ywera", "Albino Grugner" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 226,
  "utility" : 54.666666666666664,
  "delve_text" : "Realm: Albion\n \nMagical Bonuses:\n- Crossbow: 4 pts\n- Quickness: 16 pts\n- Dexterity: 9 pts\n- Slash: 4%\n \nBonus to Quickness attribute bonus cap: 5\n \nDamage Modifiers:\n- 15.3 Base DPS\n- 5.2 Weapon Speed\n- 97% Quality / 78% Condition\n- Damage Type: Siege\n- Base Range: 1250\n \n- Effective Damage: 11.6 DPS\n \n \nBonus Level: 30\n",
  "salvage_amount" : 36,
  "artifact" : false,
  "material" : 71,
  "name" : "Crossbow of the Blackheart",
  "usable_by" : [ 0 ],
  "realm" : 1,
  "id" : 41173,
  "category" : 1,
  "bonuses" : [ {
    "id" : 91,
    "type" : 2,
    "value" : 4
  }, {
    "id" : 3,
    "type" : 1,
    "value" : 16
  }, {
    "id" : 1,
    "type" : 1,
    "value" : 9
  }, {
    "id" : 3,
    "type" : 28,
    "value" : 5
  }, {
    "id" : 2,
    "type" : 5,
    "value" : 4
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?