User with this ability either is or can transform into an Gremlin, a creature depicted commonly as mischievous and mechanically oriented, with a specific interest in aircraft. Their mischievous natures are similar to those of English folkloric imps, while their inclination to damage or dismantle machinery is more modern. For such a commonly known beings, there is very little agreement what they actually are (possibilities include modern fairies and minor demons/imps) or what they look like, aside of generally humanoid appearance and smallish side.