Shashi's Icy Surprise

When cast, this spell calls a 2 inch sphere of ice into being in the caster's hand. At any time thereafter, the caster may throw it onto any surface causing the hollow sphere to burst and coat an area in a thin sheet of ice. It can also be dropped into a liquid, causing a volume of liquid equal to the caster's level in gallons to freeze instantly.

If people should happen to be running across the patch of ice, they may make a dexterity check to keep from falling on their cushy, little buttocks. (Because, trust me, if they are anything like the local townguard, they are cushy!) Otherwise, they may slow to half movement rate in order to avoid said catastrophe. Also, should someone be caught in the radius of the spell as it goes off, he will also be coated in a layer of ice. The victim may make a open doors to break though the sheet.