Edges are the bizarre and amazing capabilities granted to (or imposed upon) hunters when they are imbued. Although most hunters consider themselves to still be human, the unnatural existence of their powers makes some wonder if they're even people anymore. After all, what separates a corpse that rises from the grave; a being that can literally transform into an animal; and an individual obsessed with stalking monsters, someone who wields freakish, incredible weapons and who can heal himself instantaneously? That just isn't normal - or perhaps not even human!
Dialogue on the few hunter forums such as hunter-net goes this way and that about the source of edges - a term coined by the people looking for sense and meaning in the powers they possess. Everyone and no one has an answer. Some point to "logical" explanations such as diseases, unlikely fluctuations in the ozone layer or radioactive fallout
from secret government experiments. Others look beyond this world for explanations: in a deity, aliens, the Devil or simply in the end of the world. Ultimately, the source of and
reason for edges can never be known until the imbuing itself - and who or what is behind it - is understood.
The bottom line is: Your character suddenly has unbelievable powers. The moment he discovers them, the most appalling abomination imaginable appears before him. Everything else seems to come naturally.