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Arcane capacitor amulet (u)

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The arcane capacitor amulet (u) is obtained from Livid Farm for 18,000 produce points. This item is required for the use of the level 99 Lunar spell Borrowed Power. The player may only possess one at a time, and it degrades to dust after 1,000 uses.

The amulet may be charged with the runes for 1,000 casts of a spell from the list below (elemental staves may not be used). This creates an arcane capacitor (c). Once charged, the only way to remove the charges is either by using them or selecting the "Remove-charge" option. The amulet is then destroyed, although any unused runes are refunded.

Assuming the maximum activities per cycle at Livid Farm, and the use of a mud staff, the cost of runes at Grand Exchange price for the needed 18,000 points is 534,042.

Other alternatives to Borrowed Power already exist such as Spellbook Swap which has a slightly lower Magic requirement of 96 and does not require any Produce Points in order to be used, and is not restricted to a selected amount of spells like Borrowed Power.


The arcane capacitor can be charged with 1,000 charges of the following spells:

Air Wave icon Air wave Water Wave icon Water Wave
Earth Wave icon Earth Wave Fire Wave icon Fire Wave
Entangle icon Entangle Enfeeble icon Enfeeble
Telekinetic Grab icon Telekinetic Grab High Level Alchemy icon High Level Alchemy
Bones to Peaches icon Bones to Peaches Teleport to House icon Teleport to House
Vulnerability icon Vulnerability Slayer Dart icon Slayer Dart
Combat Stats
RequirementsArcane capacitor amulet (u) equipped
NoneNeck slot
AttributesDamage reduction
DefenceArmour0PvM: 0%PvP: 0%
ConstitutionLife points0Style bonuses


  • High Alchemy, Bones to Peaches, Teleport to House, Vulnerability, and Slayer Dart were added in an update on 31 August 2011.

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