Efnisien appears within the Second Branch of the Mabinogi (Branwen ferch Llŷr) as a member of the royal household of Llŷr: a son of Euroswydd and Penarddun, and half-brother to Brân the Blessed, Manawydan, and Branwen. His role in the tale is not as an otherworldly origin-figure but as a human agent whose personal rage and actions—beginning with an insult over Branwen's marriage—drive the narrative toward catastrophic conflict between Britain and Ireland.
Medieval sources and the supplied summaries do not provide a sustained physical description of Efnisien (height, dress, or distinguishing features). Accounts emphasize his behaviour—violent deeds and fierce initiative—rather than bodily detail. Genealogical position is emphasized: he is twin to Nisien and half-brother to Brân and Branwen, situating him within the royal family.
No explicit supernatural powers are attributed to Efnisien in the supplied materials. His notable capacities are extraordinary violence, physical strength (e.g., crushing the skulls of hidden warriors), cunning suspicion (reconnoitring the hall to uncover treachery), and single-handed destructive initiative (mutilating horses, burning Gwern). He also performs a deliberate self-sacrificial act by hiding among corpses and being cast into the Irish cauldron, destroying that magical revivification device from within at the cost of his life. The cauldron itself is the only clearly magical object noted in the tale.
Weaknesses
- conditionmortality (killed while destroying the cauldron)
- conditiondriven by wounded pride and insult (psychological motive that precipitates self-destructive decisions)
Wards
- ritualcompensation / gift-exchange (Brân's offering of a magical cauldron)
- ritualcustodial burial of Brân's head on the Gwynfryn facing France
Euroswydd
Euroswydd is a named human figure in medieval Welsh narrative tradition, recorded as the father of Nisien and Efnysien by Penarddun and listed in a Welsh Triad as one who held Llŷr captive. He functions primarily as a genealogical and political actor within the Mabinogi cycle rather than as a monstrous or supernatural being.
Edern ap Nudd
Edern ap Nudd is a Welsh medieval literary figure presented as a noble warrior and member of King Arthur's retinue. Presented in native Welsh romances and in continental Arthurian adaptations under variant names, he is described as a son of Nudd and brother of figures such as Gwyn ap Nudd; later medieval/local tradition also attests a Saint Edern with church dedications in Wales.
Edimmu
In Mesopotamian religious tradition the edimmu are a type of utukku — restless, wind-like spirits of the improperly buried who can be vengeful, possessive, and life-draining; later popular media reinterprets them as vampire- or undead-styled monsters in games and fiction.
Edmund Pevensie
Edmund Pevensie is a fictional English schoolboy created by C. S. Lewis who appears as a principal human character in The Chronicles of Narnia. He begins as a spiteful, selfish child, betrays his siblings under the influence of the White Witch, is redeemed through Aslan's sacrificial intervention, and later reigns as King Edmund the Just in Narnia before returning to England.
Edward Mordake
A late-19th-century apocryphal case popularized in sensational journalism and medical miscellany describing a supposedly well-born Englishman born with a second, allegedly malign face on the back of his head. Modern researchers treat the account as a likely hoax or urban legend rather than a documented historical or folkloric supernatural being.
Edward Tregear
Historical figure, not considered a supernatural entity in Māori tradition. (Note: * The Power tier should be "Primordial" as Edward Tregear is a historical figure, implying no supernatural abilities or powers. * The Appearance section should indicate that there is no physical descr)
Eeyeekalduk
Eeyeekalduk is identified in multiple compiled references as an Inuit supernatural figure associated with medicine, healing, and good health. The available sources list the name among Inuit deities or pantheons but provide no primary ethnographic detail about myths, rituals, or iconography.
Egbere
Malevolent humanoid supernatural beings in Yoruba mythology, residing in woods and active only at night. (Note: 1. Power tier should be Greater (powerful regional) based on the description as malevolent beings residing in woods. 2. Abilities need more specific information, such as their connection to darkness o)
Egeria
Egeria is a Roman nymph of springs and sacred groves, cast in legend as the divine consort and counselor of Numa Pompilius who imparted laws and ritual forms to Rome's foundational king. She functions as a local tutelary female deity associated with the origin of Roman rites rather than as a cosmic power or a hostile spirit.
Egg Ghost (Korean Tradition)
In Korean folklore, the Egg ghost is a malevolent entity that resembles an egg in appearance and serves as a harbinger of death. (Note: - The draft states "malevolent entity", but Source 1 doesn't explicitly state this. - Power tier: Based on the ability to determine a person's death upon sighting, it seems more likely that the Egg gh)
Eggþér
A jötunn figure in the Old Norse poem Völuspá who sits upon a mound striking a harp and is portrayed as joyful at the onset of Ragnarök; presented as the herder associated with a female jötunn of Járnviðr who raises wolves descended from Fenrir.
Eglė the Queen of Serpents (Žilvinas)
A central figure of a Lithuanian folktale in which a speaking serpentine ruler—called the grass-snake/serpent prince Žilvinas—marries the human maiden Eglė, keeps an underwater palace and household, can be summoned by a secret chant, and whose story culminates in human→tree metamorphoses after betrayal.
Community Record
- [1]Efnysien. Wikipedia contributors, 'Efnysien,' Wikipedia, The Free Encyclopedia.wiki
- [2]Branwen. Wikipedia contributors, 'Branwen,' Wikipedia, The Free Encyclopedia.wiki
- [3]Wikidata entry for Efnisien. Wikidata: Q1296422other
- [4]Branwen (audio/text summary). Department of Anglo-Saxon, Norse and Celtic, University of Cambridge — Branwen (summary page).academic