You should think hard about how you're going to produce ice, unless you're in someplace like Icewind Dale, ice of any kind will be scarce about 8 months out of the year and unless they have a serious body of waer, it'll be hard to come by then; most of it is used pretty quickly for local use. (Keeping ice for any significant period of time is problematic)<br/><br/>There are spells, I think, that could be used to freeze water, but then, you have to transport it. A cubic foot of ice is about 10 pounds and how much would you need?