Katla

A valkyrie (pronounced “VAL-ker-ee”; Old Norse valkyrja, plural valkyrjur, “choosers of the fallen”) is a female helping spirit of the god Odin. The modern image of the valkyries as elegant, noble maidens bearing dead heroes to Valhalla is largely accurate for what it is, but a highly selective portrayal that exaggerates their pleasant qualities. To some extent, this tendency toward sanitization is present even in the later Old Norse sources, which focus on their love affairs with human men and their assisting Odin in transporting his favorites among those slain in battle to Valhalla, where they will fight by his side during Ragnarok.
The meaning of their name, “choosers of the slain,” refers not only to their choosing who gains admittance to Valhalla, but also to their choosing who dies in battle and using malicious magic to ensure that their preferences in this regard are brought to fruition.

The valkyries’ gruesome side is illustrated most vividly in the Darraðarljóð, a poem contained within Njal’s Saga. Here, twelve valkyries are seen prior to the Battle of Clontarf, sitting at a loom and weaving the tragic fate of the warriors (an activity highly reminiscent of the Norns). They use intestines for their thread, severed heads for weights, and swords and arrows for beaters, all the while chanting their intentions with ominous delight.

Katla can create, shape and manipulate electricity, a form of energy resulting from the movement of charged particles (such as electrons or protons), allowing control over electric fields, all charge carriers (Ions, Electrons, Protons, and Positrons), electronics, and electromagnetic forces.