Scathach ("Shadowy") is a figure in the Ulster Cycle of Irish mythology. She is a legendary Scottish warrior woman and martial arts teacher who trains the legendary Ulster hero Cu Chulainn in the arts of combat. Texts describe her homeland as "Alpi", which commentators associate with Alba, the Gaelic name of Scotland; she is especially associated with the Isle of Skye, where her residence Dún Scáith (Fort of Shadows) stands.
Scathach's instruction of Cu Chulainn appears in Tochmarc Emire (The Wooing of Emer), a foretale to the great epic 'Táin Bó Cúailnge'. Cu Chulainn and Emer fall in love, but her father Forgall forbade the union until Cu Chulainn has completed his warrior training. Cu Chulainn and his friend Ferdiad travel to Dún Scáith, where Scathach teaches them feats of arms, and gives Cu Chulainn his deadly spear, the Gáe Bulg.
Cu Chulainn begins an affair with Scathach's daughter Uathach, but accidentally breaks her fingers. She screams, calling her lover Cochar Croibhe to the room. Despite Uathach's protests, he challenges Cu Chulainn to a duel; Cu Chulainn dispatches him easily.
To make it up to Uathach and Scathach, Cu Chulainn assumes Cochar's duties, and becomes Uathach's lover. Scathach eventually promises her daughter to him, without requiring the traditional bride price. Scathach also grants Cu Chulainn the "friendship of her thighs" (they have sex) when his training is almost complete. When her rival, the warrior woman Aífe, threatens her territory, Cu Chulainn defeats her in battle and forces her to make peace. Aífe also sleeps with Cu Chulainn, producing his son Connla, who Cu Chulainn kills years later without realizing he is his son.
"A great warrior and prophetess of Celtic mythology, also known as 'The Shadowy One'. She taught Cu Chulainn martial arts and gave him his famous spear, Gae Bolg. Her sister is Aife."
"A warrior queenof the Land of Shadows in Celtic lore. She taught the Irish hero Cu Chulainn the art of war, and gave him the spear Gae Bolg."
—Strange Journey Compendium
She appears as a summonable demon and as a NPC in Sector Antlia, in Morax's old lair, as part of the EX Mission A formal search request, in which she received the help of Cu Chulainn in one of her endless battles. She expresses her appeciation for her student, though she chides him for believing she needed his help in the first place. She tells the Protagonist that Cu Chulainn heard of the search for him and that he now was searching for the Protagonist himself.
"The war goddess of Celtic lore, as well as the queen of the Land of Shadows. She is a skilled magician and a master warrior. She trains young men who come to her in the art of war. The famed Cu Chulainn was one of her students, and it is said that he received the legendary Gae Bolg upon his mastery of her teachings."
Added by SexyShiva5
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