Moth

He's one of us. He belongs with us. He's as fast as lightning and can run on freaking rainbows. He'll live for thousands of years, but not if he stays with you. Every day spent in this doomed realm, cut off from the faykind, he gets a little weaker. Eventually, he won't be a hobgoblin at all. Everything that makes him special will be gone. Let him go, mortal... for his sake.