Deathworld by Harry Harrison

Jason dinAlit, an inhabitant of the planet Porgostrosaand, is a fast talking, conniving, tough as nails, gun toting gambler whose ethics wax and wane with each planet he travels to. He also has amazing psionic abilities which means he is gifted with a variety of psychic abilities including telekinesis, telepathy, pyrokinesis and a host of other interesting capabilities. He is not above using these to tip the odds in his favor while gambling. A chance meeting with Kerk Pyrrus who is the Ambassador of