Oh, no! The country is in the grip of a polar vortex! What's a Marvel reader to do??
Pour on the ice, that's what! Let's start with:
The original (chronologically, that is) Jack Frost!
Iceman!
The evilJack Frost!
Darn those miniaturized furnaces!
Endotherm!
Jack Frost 2.0--Blizzard!
Baby, it's cold sub-zero outside! Make sure you slap on your solar armor, okay?