Help request from new player, Re: Ice themed Sorcerer

Quote from LeviRocks >>

Also, Icewind Dale: Rime of the Frostmaiden will have more ice spells in it, so if anyone wants ice based-spellcasters, there'll be more support for them in the future. 

 Honestly, I can't wait. The ART alone is so good, I can't wait for the story and spells, monsters and anything else that's in it!

You could use some control and manipulation spells. Shape Water, Fog Cloud, Hold Person, Slow, Wall of Water, Watery Sphere, and Hold Monster all contribute to the cold/ice theme.

You can even Polymorph people into mammoths.