A deist also believes into a supernatural being - aka a creator. So???
I don't know where as to: "heat moves spontaneously from hot to cold". To move heat from cold to hot requires external energy, you got a problem with. And FYI its a statistical law and not an "absolute" one, e.g. microscopic scales involving a few particles. Whereas it holds true for all macroscopic systems.
AI:
In summary, the second law is one of the most reliable and heavily tested principles in physics. While it has exceptions at the particle level, it is not "wrong" in the contexts for which it was designed.