Deals lightning damage to target and all enemies nearby it with a potency of 220 for the first enemy, and 50% less for all remaining enemies.
— In-game description
Electrogenesis is an action unlocked at level 1. It's available for Blue Mage.
This efficacious technique is, in nature, employed by the voracious sea serpent, which will spit a bubble of water that takes on the electric charge of the serpent's own scales─giving the creature's prey a rather nasty shock upon impact.