He is basically a combo of Uber and Leet. Uber was naturally talented at things, anything he tried he would be talented at it. Leet could build inpossible tinker devices, but only so long as it was something new. The closer it was to something he had built before the more likely it was to fail. So in otherwords, gamble has both. 

Anybody else notice that our characters seem to come in groups? We get one tinker we get many tinkers, we get one microbiology cape we get multiple, we get one cape based around gambling, we get multiple. Etc.