A unit suffering cold damage may freeze. It will then take additional fatigue damage until it thaws. A unit that is freezing takes 2d6 additional fatigue points of fatigue damage each turn until it thaws.

Cold vulnerability counts as negative cold resistance. Units with 5 or more cold resistance, units with heat auras, and ethereal units will never freeze. Cold scales work like heat scales for burning: if it’s cold in the province, the chance of thawing is reduced by the scales.