Sentinel's Focal Mythirian

Other Mythirian

Item Details

Utility 13
Bonus Level 2
Dyeable No
Sellable No
Tradeable Yes

Restrictions

Level Required Any
Usable By
All Classes

Magical Bonuses

ToA
Toa Cast Speed 1%
Mythical
Mythical Spell Focus 1
Catacombs
Spell Power Cost Reduction (PvE) 4

Raw Item JSON

{
  "bonus_level" : 2,
  "sources" : {
    "quests" : [ "Epic Encounter: The Sinking Island", "[Connla] Epic Encounter: Fangore", "Epic Encounter: Suit Yourself", "Clear Out the Mines", "Punching Bears", "Fry Their Aggression" ],
    "stores" : [ "MID Wilton BP Store3", "HIB Wilton BP Store3", "ALB Wilton BP Store3" ]
  },
  "flags" : {
    "dyable" : false,
    "emblemizable" : false,
    "no_sell" : true
  },
  "icon" : 4274,
  "utility" : 13.0,
  "delve_text" : " \n  (Mythical Slot Item. Must be at least level 30 to equip.)\nMagical Bonuses:\n- Mythical Spell Increase: 1\n- Spell Power Cost Reduction: 4% (PvE Only)\n \nBonus to casting speed: 1%\n \nCannot be sold to merchants.\n \nBonus Level: 2\n",
  "slot" : 17,
  "artifact" : false,
  "material" : 0,
  "name" : "Sentinel's Focal Mythirian",
  "usable_by" : [ 0 ],
  "realm" : 0,
  "id" : 18519,
  "category" : 8,
  "bonuses" : [ {
    "type" : 73,
    "value" : 1
  }, {
    "type" : 37,
    "value" : 4
  }, {
    "type" : 21,
    "value" : 1
  } ],
  "ability_tags" : [ ]
}
How is utility calculated?