Goblin

''Short and stout, the goblin sneakily snatches from a stranger's belt a bag of gold coin, but just as they do the hapless victim notices, weapons drawn, a bar fight ensues. In the cumosion the little thief squeezes their way out from the crowd, scurrying home with newfound treasure.''

Descendants of afflicted humans, goblins possess a sensitivity to precious metals, and in its original form this sense was so strong that it lead them to go mad for metals such as gold, even the slightest proximity to it sending them into a mad frenzy. In the many years it took for this sense to become less extreme, untouched humans didn't dare try to interbreed with them, resulting in genetic incompatibility with humans after years of reproductive isolation. Even once the metal sense of goblins became more tame, for some time humans, not seeing goblins as equals, enslaved them and used them like living metal detectors, occasionally using them to fulfil sexual desires.

Goblins are born with a bright green hue, but as age takes effect their skin loses saturation till they become gray, the oldest goblins possessing pale white hide. Hair is also subject to this effect, which will result in uniform skin and hair color. Another effect of age is a gradual increase of their metal sense, drawing them to seek out metals, whether that be by modern means or by retreating underground.

Traits

 Magnetosensitivity . You have an inherent sense for rare metals within a ??? meter radius