Ether Staff of the Spectre

Weapon Staff Two Handed

Item Details

Utility 20.25
Bonus Level 10
Dyeable No
Sellable Yes
Tradeable Yes
Damage Info
DPS 12.3
Speed 4.6
Base Quality 89%

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

Basic
Hit Points 9
Energy Resist 4%
Spectral Guard 2
Focus
Spectral Guard 37

Raw Item JSON

{
  "sell_value" : 17256,
  "type_data" : {
    "damage_type" : 1,
    "left_handed" : 0,
    "dps" : 12.3,
    "base_quality" : 89,
    "two_handed" : 1,
    "skill_used" : 47,
    "clamped_dps" : 12.3,
    "speed" : 4.6
  },
  "bonus_level" : 10,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "deamhan aeir" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 19,
  "utility" : 20.25,
  "delve_text" : "Realm: Hibernia\n \nMagical Bonuses:\n- Energy: 4%\n- Spectral Guard: 2 pts\n- Hits: 9 pts\n \nFocus Bonuses:\n- Spectral Guard: 37 lvls\n \n \nDamage Modifiers:\n- 12.3 Base DPS\n- 4.6 Weapon Speed\n- 89% Quality / 82% Condition\n- Damage Type: Crush\n \n- Effective Damage: 9.0 DPS\n \n \nBonus Level: 10\n",
  "salvage_amount" : 29,
  "artifact" : false,
  "material" : 38,
  "name" : "Ether Staff of the Spectre",
  "usable_by" : [ 0 ],
  "realm" : 3,
  "id" : 47540,
  "category" : 1,
  "bonuses" : [ {
    "id" : 134,
    "type" : 6,
    "value" : 37
  }, {
    "id" : 22,
    "type" : 5,
    "value" : 4
  }, {
    "id" : 134,
    "type" : 2,
    "value" : 2
  }, {
    "type" : 4,
    "value" : 9
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?