The Leaper at The Shadow Vault wants you to use a Jotunheim Rapid-Fire Harpoon to shoot down 15 Jotunheim Proto-Drakes and their riders.
Jotunheim has aerial defenses, both in terms of proto-drake riders and harpoon guns. They've concentrated these on their northern and western facings where they are most vulnerable.
Let's use their defenses against them!
<The Leaper pierces you with his single eye and cackles maniacally.>
Take control of a harpoon gun on the platforms that overhang the cliffs on either side of Valhalas to the southwest. Take out the proto-drakes and their riders. Shoot 'em up!
Also, you get: 74
Tsk, tsk... you haven't shot down your fair share of proto-drakes today!
You are a true champion for the cause, <name>!
Won't you please come speak to me again tomorrow? I'm certain that there will be more of those nasty proto-drakes to shoot down.
Upon completion of this quest you will gain: