Bracelet of Silent Oblivion

Jewelry Bracer

Item Details

Utility 74.33
Bonus Level 36
Dyeable No
Sellable Yes
Tradeable Yes

Restrictions

Level Required 50
Usable By
All Classes

Magical Bonuses

Basic
Hit Points 60
Dexterity 22
Quickness 22
Parry 4
ToA
Toa Melee Speed 2%

Primary Ability

Improved Stat Decrease Level 50
Charge (30 max)


Raw Item JSON

{
  "sell_value" : 48114,
  "requirements" : {
    "level_required" : 50
  },
  "bonus_level" : 36,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Ammut" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 619,
  "utility" : 74.33333333333333,
  "delve_text" : " \nMagical Bonuses:\n- Parry: 4 pts\n- Dexterity: 22 pts\n- Quickness: 22 pts\n- Hits: 60 pts\n \nLevel Requirement: 50 Level\n \nBonus to melee combat speed: 2%\n \nCharged Magic Ability:\n- 30 Charges\n- 30 Max\nFunction: improved stat decrease\n \nDecreases the target's listed stat(s).\n \nStr/Con decrease: 56\nTarget: Targeted\nRange: 300\nDuration: 1:00 min\nCasting time: instant\nDamage: Body\n \n- This spell is cast when the item is used.\n \nCan use item every: 1:00 min\n \n \nBonus Level: 36\n",
  "slot" : 13,
  "abilities" : [ {
    "max_charges" : 30,
    "spell" : 3842,
    "magic_type" : 6,
    "power_level" : 50,
    "position" : 1
  } ],
  "artifact" : false,
  "material" : 0,
  "name" : "Bracelet of Silent Oblivion",
  "usable_by" : [ 0 ],
  "realm" : 0,
  "id" : 30265,
  "category" : 5,
  "use_duration" : 60,
  "bonuses" : [ {
    "id" : 8,
    "type" : 2,
    "value" : 4
  }, {
    "id" : 1,
    "type" : 1,
    "value" : 22
  }, {
    "id" : 3,
    "type" : 1,
    "value" : 22
  }, {
    "type" : 19,
    "value" : 2
  }, {
    "type" : 4,
    "value" : 60
  } ],
  "ability_tags" : [ "fn_ntwostat" ]
}
How is utility calculated?