Valkyrie Hild

Hild or Hildr is one of the Valkyries of war and appears on a battle field bringing back the dead. She can raise the dead and also she's said to have the ability to give immortality to certain people. She is perhaps not mortal as such but a demi goddess and a sorceress valkyrie. Her name is an Old Norse noun word for "battle" as this is what she does. 

She was the beautiful daughter of a powerful war lord named Hogni. One day, a royal warrior named Hedin came across her and he found her sweet, lovely and voluptuous. Hild's hair was like milk satin and her large eyes were a striking colour of steel grey. Despite her innocent appearance, her wisdom contained heavy powerful magic. She was extremely intelligent, wise and full of esoteric knowledge. She knew the secrets to immortality and the essense of life and death. Her beauty and mind attracted the young prince to her.

Hedin instantly fell in love with her and then one night he kidnapped her. They fled to the island of Hoy, in the Orkneys of Scotland, where King Hogni persued them and sought revenge. Hild presented a necklace of precious gems to her father as a payment so that she could be Hedin's queen. But Hogni wasn't impressed and didn't want to let Hedin get away with stealing his daughter.

In anger, Hild's father and his men fought against her husband and his army. A ferocious battle happened then and all the men were killed, including Hedin and Hogni. In grief, valkyrie Hild used her sorcery to awaken all of the fallen men from death. They woke but instead they could only remember fighting and the urge to kill, so they all resumed fighting and killing each other off. Hild revived them again, but each time the men woke up from the dead, they continued fighting and dying. She kept bringing them back. This perpetual war play of men killing each other off, and the valkyrie Hild resurrecting them all over again, and again, would continue until the end of the world at Ragnarok.

This legendary battle of Heodenings was played out forever, and appears as "Hjaðningavíg" in the Prose Edda.

Links:

The Prose Edda