Stone Bone Gem

High Utility Jewelry Jewel

Item Details

Utility 110
Bonus Level 40
Dyeable No
Sellable Yes
Tradeable Yes

Restrictions

Level Required 50
Usable By
All Classes

Magical Bonuses

Basic
Shadow Mastery 3
Vampiiric Embrace 3
Dementia 4
ToA
Toa Spell Duration 5%
Toa Cast Speed 5%
Toa Melee Speed 5%

Primary Ability

Damage Shield Level 50
Charge (30 max)


Raw Item JSON

{
  "sell_value" : 40056,
  "requirements" : {
    "level_required" : 50
  },
  "bonus_level" : 40,
  "sources" : {
    "monsters" : {
      "normal_drop" : [ "Olmagion" ]
    }
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false
  },
  "icon" : 115,
  "utility" : 110.0,
  "delve_text" : " \nMagical Bonuses:\n- Dementia: 4 pts\n- Vampiiric Embrace: 3 pts\n- Shadow Mastery: 3 pts\n \nLevel Requirement: 50 Level\n \nBonus to duration of spells: 5%\nBonus to casting speed: 5%\nBonus to melee combat speed: 5%\n \nCharged Magic Ability:\n- 30 Charges\n- 30 Max\nFunction: damage shield\nDamage: 5.1\nTarget: Self\nDuration: 15 sec\nCasting time: instant\n \n- This spell is cast when the item is used.\n \nCan use item every: 1:30 min\n \n \nBonus Level: 40\n",
  "slot" : 4,
  "abilities" : [ {
    "max_charges" : 30,
    "spell" : 3849,
    "magic_type" : 6,
    "power_level" : 50,
    "position" : 1
  } ],
  "artifact" : false,
  "material" : 0,
  "name" : "Stone Bone Gem",
  "usable_by" : [ 0 ],
  "realm" : 0,
  "id" : 21957,
  "category" : 5,
  "use_duration" : 90,
  "bonuses" : [ {
    "id" : 139,
    "type" : 2,
    "value" : 4
  }, {
    "id" : 138,
    "type" : 2,
    "value" : 3
  }, {
    "id" : 137,
    "type" : 2,
    "value" : 3
  }, {
    "type" : 13,
    "value" : 5
  }, {
    "type" : 21,
    "value" : 5
  }, {
    "type" : 19,
    "value" : 5
  } ],
  "ability_tags" : [ "fn_dmg_shield" ]
}
How is utility calculated?