Wendigo
In Algonquian folklore, the wendigo () or windigo is a mythical man-eating monster or evil spirit native to the northern forests of the Atlantic Coast and Great Lakes Region of the United States and Canada. The wendigo may appear as a monster with some characteristics of a human or as a spirit who has possessed a human being and made them become monstrous. It is historically associated with murder, insatiable greed, and the cultural taboos against such behaviours.
Wechuge
Professor Robin Ridington came across stories of the wechuge while speaking with the Dane-zaa of the Peace River region in western Canada. The Dane-zaa believed that one could become wechuge by breaking a taboo and becoming "too strong". Examples of these taboos include a person having a photo taken with a flash, listening to music made with a stretched string or hide (hence guitar music), or eating meat with fly eggs in it. Like the wendigo, the wechuge seeks to eat people, attempting to lure them away from their fellows by cunning. The wechuge is said to be stronger than the wendigo, also more intelligent and cunning. In one folktale, it is made of ice and very strong, and is only killed by being thrown on a campfire and kept there overnight until it has melted. Wechuge is considered a curse and a punishment, they're destructive and cannibalistic creatures.