The "Vision Quest" in Deshaan asks the player to kill some mobs to gather items needed. You are given a wand that has the ability to blow up scamps and turn them into dead chickens, which the player can use to their advantage.
Once you kill enough scamps, the wand still functions {Gives option to press E when in range of scamps) because you are required to kill shadow creatures as well.
So just refrain from killing them (the shadow creatures) and the wand will continue to function and will blow up targeted scamps.
By running around the instanced quest area, the player can keep killing scamps for xp and loot. I was able to do this until lvl 27 before the mobs stopped giving experience.
I collected multiple armor sets, runes, crafting items, etc from grinding this area until it stopped giving xp at 27.
Try it for yourself and see how it works.
ps: I remember getting this quest around 18, but you might be able to get it earlier and since the wand kills the scamps in one hit, it wont matter if you have trouble hitting them with normal attacks.