Freeze and Thaw (Su)

At 2nd level, a winter witch can freeze water or melt ice and snow with a touch. As a standard action, a winter witch can melt an adjacent 5-foot cube of ice or a 10-foot cube of snow. Melting snow produces a volume of water equal to 10% the snow’s volume. Alternatively, a winter witch can freeze 5 cubic feet of water into solid ice. This freezing takes place gradually over 1 round, making it almost impossible to trap a creature unless it’s helpless. This cannot affect water within a creature. One cubic foot of ice contains roughly 8 gallons of water and weighs about 60 pounds. This ability works on fresh water and saltwater, but has no affect on water creatures; on liquids (frozen or otherwise) other than water; or on magical water, ice, or snow. A winter witch can use this ability a number of times per day equal to 1/2 her class level.