Mulguk's Ring of Swiftness

Jewelry Ring

Item Details

Utility 20.67
Bonus Level 10
Dyeable No
Sellable Yes
Tradeable Yes

Restrictions

Level Required 15
Usable By
All Classes

Magical Bonuses

Basic
Hit Points 16
Constitution 6
Quickness 7
Body Resist 2%
ToA
ToA Overcap - Quickness 2

Primary Ability

Armor Factor Buff Level 15
Charge (10 max)


Raw Item JSON

{
  "sell_value" : 7500,
  "requirements" : {
    "level_required" : 15
  },
  "bonus_level" : 10,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Chief Mulguk" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 103,
  "utility" : 20.666666666666664,
  "delve_text" : " \nMagical Bonuses:\n- Constitution: 6 pts\n- Quickness: 7 pts\n- Body: 2%\n- Hits: 16 pts\n \nLevel Requirement: 15 Level\n \nBonus to Quickness attribute bonus cap: 2\n \nCharged Magic Ability:\n- 10 Charges\n- 10 Max\nFunction: shield\n \nAdds to the recipient's Armor Factor (AF), resulting in better protection against some forms of attack. It acts in addition to any armor the target is wearing.\n \nValue: 25\nTarget: Self\nDuration: 10:00 min\nCasting time: instant\n \n- This spell is cast when the item is used.\n \n \nBonus Level: 10\n",
  "slot" : 15,
  "abilities" : [ {
    "max_charges" : 10,
    "spell" : 10166,
    "magic_type" : 6,
    "power_level" : 15,
    "position" : 1
  } ],
  "artifact" : false,
  "material" : 0,
  "name" : "Mulguk's Ring of Swiftness",
  "usable_by" : [ 0 ],
  "realm" : 0,
  "id" : 32782,
  "category" : 5,
  "bonuses" : [ {
    "id" : 2,
    "type" : 1,
    "value" : 6
  }, {
    "id" : 3,
    "type" : 1,
    "value" : 7
  }, {
    "id" : 3,
    "type" : 28,
    "value" : 2
  }, {
    "id" : 16,
    "type" : 5,
    "value" : 2
  }, {
    "type" : 4,
    "value" : 16
  } ],
  "ability_tags" : [ "fn_shield" ]
}
How is utility calculated?