Half-Fiends
From BelegarthWiki
A half-fiend is the direct offspring of a Human mother and a Demon or Devil father. Half-Fiends inherit the power of their fathers. This power manifests itself sometime between the ages of twelve and twenty, though you may see precursors of it earlier than that, around ten. While most fiends take a human form to fool mortals, half-fiends are always have the appearance of a human.
