Dimensional Wanderer's Key

Item ID 490276 Name Dimensional Wanderer's Key
A key possessed by an existence that crosses dimensions.
It's unclear which door can be opened with it.
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[Can be refined]
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All Traits +3
Decreases Variable Casting Time by 10%.
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Refine Level +7:
S.MATK +3
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Refine Level +9:
For each 20 base SPL:
WIS +4, S.MATK +2
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Refine Level +12:
Decreases Fixed Casting Time by 0.3 seconds.
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[Bonus by Grade]
[Grade D]: SPL +2, MATK +3%.
[Grade C]: S.MATK +2
[Grade B]: S.MATK +3, RES +20.
[Grade A]: SPL +2 per 15 base INT.
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Type: Accessory
Position: Right
Defense: 0
Weight: 20
Armor Level: 2
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Requirement:
Base Level 240
Weapon Level 0 Identifier Dimmension_W_Key
Attack 0 Type Armor
MATK 0 Equip Locations Accessory Right
Defense 0 Equippable Jobs None
Range 0 Equip Gender Both (Male and Female)
Slots 1 Equip Upper None
Weight 20 Min Equip Level 240
NPC Buy 0 Max Equip Level None
NPC Sell 0 Refineable Yes
Credit Price None Trade restriction None
Item Script 
.@param = (readparam(bSpl)/20);
.@g = getenchantgrade();
.@r = getrefine();
bonus bAllTraitStats,3;
bonus bVariableCastrate,-10;
if (.@r>=7) {
   bonus bSMatk,3;
   if (.@r>=9) {
      bonus bSMatk,2*.@param;
      bonus bWis,4*.@param;
      if (.@r>=12) {
         bonus bFixedCast,-300;
      }
   }
}
if (.@g>=ENCHANTGRADE_D) {
   bonus bMatkRate,3;
   bonus bSpl,2;
   if (.@g>=ENCHANTGRADE_C) {
      bonus bSMatk,2;
      if (.@g>=ENCHANTGRADE_B) {
         bonus bSMatk,3;
         bonus bRes,20;
         if (.@g>=ENCHANTGRADE_A) {
            bonus bSpl,2*(readparam(bInt)/15);
         }
      }
   }
}