Lightning Rod

Weapon

Uncommon

Glaive, Halberd, Pike, Spear, Lance or Trident.
Electrified: The weapon deals 1d4 bonus lightning damage on hit.
Lightning Gun: Once per short rest, the wielder can use an action to cast the Lightning Bolt spell, using the wielder's Str or Dex modifier as the spellcasting modifier.

This polearm has been modified with an arcane battery connected to the tip of the weapon. When it is touched against metal, there is a visible discharge of electricity. The battery can be overcharged to release a bolt of crackling lightning.