While I think you could still cancel a cashier's check if it became lost or stolen, I would think that it would be much easier to have a traveler's check or to arrange for a wire transfer to casino. You may get hit with a wire fee.
If you run a line of credit, the casino is going to be much more interested in what the average balance of your checking or savings account has been, than your actual credit history.
If you run a line of credit, the casino is going to be much more interested in what the average balance of your checking or savings account has been, than your actual credit history.