Helikaon is a 6'3" elf with slightly raggedly cut white-blond hair contrasting with well sun-bronzed skin. He has piercing violet-blue eyes, an aquiline nose and high cheekbones in a fairly thin face, and is quite bulky just across the shoulders from years wielding a greatsword.
When the Heroes first met he generally had a frown on his face the vast majority of the time (only partially attributable to the people around) but as time has gone on he's looked steadily more relaxed/equanimous and recently has even started to tend to a default expression of slightly baffled amusement at the ridiculousness of the world around him.
When not in full armour for combat, wears simply-cut tunic/leggings of rich shades of purple and blue and goes barefoot when he can and solid leather boots otherwise, with a billowing royal purple cloak. His armour is made up of fitted slatted plates, but with the slats also wrapping around the legs and merging into single sheet greaves.