Creatures from another world who throw lightning and hide inside Human skins. They were summoned by Balor to fight in the Great War, but stranded when he was killed by Alric. They then served Soulblighter in the hopes that he would honor Balor's pledge to send them home.
A fetch's lightning attack disrupts dwarf bottles, pus, healing, fireballs and more.
In Myth TFL, lightning could propel dwarf bottles over enormous distances, see "Chain Lightning".