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From Pathfinder Treasure Vault (Remastered), which isn't enabled.

Jolt Coil (Major)

ITEM 12
ELECTRICITYMAGICALSPELLHEART
Price 1750 gp
Usage affixed to armor or a weapon
Bulk —

Contained within this small glass tube is a twisted wire filament crackling with electricity, sending static prickling through the hair of anyone holding it. The spell DC of any spell cast by activating this item is 29.

  • Armor You gain resistance 5 to electricity.
  • Weapon After you cast an electricity spell by activating the coil, your Strikes with the weapon deal an additional 1d8 electricity damage until the end of your next turn.

Effect: Jolt Coil - Armor

Effect: Jolt Coil - Weapon

DC 29 basic Reflex

Activate Cast a Spell
Effect You cast Electric Arc.
Activate Cast a Spell
Frequency once per day
Effect You cast 4th-rank Lightning Bolt.
Activate Cast a Spell
Frequency once per day
Effect You cast Draw the Lightning.
Pathfinder Treasure Vault (Remastered)ORC