Here's a bit more info on the gremlin:
Playing a Gremlin
An ancient fey race, twisted and deformed while serving the midnight queen during the fabled Winter Wars, gremlins are strange creatures with a knack for making equally strange and wondrous devices of all kinds. More than a little paranoid, gremlins have a healthy distrust for anyone who asks too many questions about the race or their creations. Elves, especially, are not to be trusted. Even now, countless centuries since the Winter Wars, gremlins still harbor ill feelings towards elves, blaming the race for their role in the banishment of gremlins from the realm of the fey.
Highly inquisitive creatures, gremlins love to find out how things work. They’ll spend hours, even days tearing a device apart and rebuilding it, just to see if they can. Puzzles and riddles are favorite gremlin pastimes. Gremlins hold regular competitions to see who can create the best puzzle or tell the hardest riddle. This natural love for solving things is perhaps what drives them to adventure beyond the confines of their cluttered workshops to seek out and unravel the mysteries of the world. To gremlins, the pursuit of knowledge is more than just a pastime; it’s a lucrative venture. Gremlin informant networks are vast, rivaling those of even the most powerful kings and queens.
Most people tend to dismiss gremlins as quirky, harmless creatures that peddle their strange contraptions and gizmos in cities throughout the realms. In reality, gremlins are sly creatures that use their innocuous reputation as merchants and eccentric artisans to hide their true vocation as information gatherers and spies. Some gremlins become wizards, using enchantments and spells such as Invisibility or Disguise Self to facilitate their entry into places or social circles where they might otherwise be denied access. Others become rogues (or in rarer cases, even assassins), utilizing their speed, size and knack for disarming traps and locks to gain access to even the most formidably guarded secrets.
While most gremlins adventure for personal, often selfish, reasons, they recognize that a group mentality is often needed to overcome the myriad dangers while traveling out in the wilds. This in mind, gremlin adventurers typically do their best to curb their selfish tendencies when working with others. At the very least, they will work with the group as long as it’s advantageous to do so.