Teshial

So, it is unclear if the Dreamelves are the descendants of the last true Teshial elf, who they consider their god, or just they they are the descendants of the entire Teshial caste who forgot their connection to the other castes and the race itself. As Vanys and Undal are dreamelves themselves, they are likely not able to tell the right answer. Also, the book about Dream Magic mentions that all elves have the ability to use the Dream magic to manipulate the appearecences and the personality of their children before birth. This was mainly used with aesthetic goals, but is is stated that physical changes could be made this way too, with considerable changes taking the span of several generations. All of the current elven castes could use a rudimentary version of the Dream Magic, as most of the knowledge of past is forgotten. This could be an explanation of how the Dreamelves are so powerful and somehow physically different than the "normal elves" due to the mastery of the ancient Dream magic by the Teshial and how they changed their pacific ways to be fighters under the malicious influence of The Nightmare Beast, the other product of their "god"'s dreams. If the theories about the Teshial, the Dreamelves and their relation to the Nightmare Knights are correct, one can assume that probably one or few of the last Teshial escaped the demonic invasion of the Dream Realm and returned to the conscious world, creating new settlement that eventually became The Courts of Summer and Winter.