Fabricant Shock is a unique Destruction spell in The Elder Scrolls III: Tribunal that inflicts elemental shock damage upon multiple victims while simultaneously decreasing the target's resistance to damage from elemental shock.
Both effects are cast in a 50-foot radius on target:
This spell is cast by Imperfect, the massive Fabricant that stands guard outside of Sotha Sil's laboratory in the Clockwork City.
This spell is not available for purchase. Although not intended for use by the Nerevarine, it can be acquired on the PC by using the console command:
Player -> AddSpell shockimperfect