User blog comment:REALsrg/Possible New Type?/@comment-1695916-20130514022700

Its a flying type. Like every eeveelution, their name derives from a greek root. Sylveon derives from the word Sylph, most likely. A sylph is a mythological winged-beast, e.g., a harpie.

Who wouldnt hiss at poison? Its noxious and dangerous o_O