Loki

Rune: KREFT
Father of monsters, blood brother of Odin. A shapeshifter. Represents the darker side of Niord. God of thieves, charming, devious. Clever, but not wise - like an intelligent but spoilt child.

god of mischief, a trickster, and very cunning
major deities in the Norse pantheon
became a member of the Aesir when Odin made Loki his blood brother
son of the giant Farbauti ("cruel striker") and the giantess Laufey

handsome giant
represented evil and was possessed of great knowledge and cunning
connected with fire and magic
can assume many different shapes (horse, falcon, fly)
crafty and malicious
also heroic
The ambivalent god grows progressively more unpleasent, and is directly responsible for the death of Balder, the god of light.

Loki's mistress is the giantess Angrboda, and with her he is the father of three monsters. His wife is Sigyn, who stayed loyal to him, even when the gods punished him for the death of Balder. He was chained to three large boulders; one under his shoulders, one under his loins and one under his knees. A poisonous snake was placed above his head. The dripping venom that lands on him is caught by Sigyn in a bowl. But every now and then, when the bowl is filled to the brim, she has to leave him to empty it. Then the poison that falls on Loki's face makes him twist in pain, causing earthquakes.

On the day of Ragnarok, Loki's chains will break and he will lead the giants into battle against the gods. Loki is often called the Sly One, the Trickster, the Shape Changer, and the Sky Traveler.

A trickster. Sly, deceitful, a master thief, not to be trusted. He is also charming, witty, quite capable, and possessed of a sardonic sense of humor which he aims at himself no less often than at others. A shape shifter who can change into almost any animal form. Loki was involved in many of the gods' adventures, usually because one of his tricks had made some kind of a mess. Once blood brother to a pre-Yggdrasil Odin.

Sources: Various including: Encyclopedia Mythica, http://www.feri.com/dawn/religion.html, Micha F. Lindemans

Norse/Teutonic Gods and Goddess
God and Goddess Index