Loki moves among gods, giants, and animal forms. He causes crises but resolves several through cunning. This changing function makes him one of the most mobile figures in the literary tradition.
He fathers Fenrir, the Midgard Serpent, and Hel and—after becoming a mare—mothers Sleipnir. These boundary crossings involve body, gender, kinship, and social order.
In Lokasenna Loki attacks the gods with accusations and revelations; sources tell his responsibility for Baldr’s death differently. At Ragnarök he ultimately fights against the gods.
No secure Viking-Age cult of Loki is known. Images of a worshipped trickster or a Norse Satan therefore depend more on modern systems than on clear evidence of cult.