Feral Elves
Feral Elves are Elves which primarily reside in Everaldimor, The Feral Lands, and the Lowmarch. They are so named because of their radically naturalistic lifestyles, in which they are reduced to little more than the animals around them. Legends of Feral Elves devouring humans, Fey, and even their Elven brethren run rampant throughout the world; Feral Elves certainly are known to be openly hostile to those they do not know, and they are equally known to eat the raw meat of the animals they hunt, which has been used to provide veracity to the claim.
Feral Elves are often associated with Spirit Elves, who too sometimes have a cannibalistic reputation in the broader world. Most Feral Elves, though, seem to have significantly deteriorated cognitions, and many aren't even capable of speech, which draws a clear distinction between the two Elven races. There is still nonetheless crossover, and some Spirit Elves turn into Feral Elves for a variety of reasons.