As an action, a blast of cold air erupts from your hands. Each creature in a cone or line must make a Reflex saving throw.
On a failure, it takes 3d6 cold damage and is slowed 1 until the end of its next turn.
On a critical failure, it takes twice as much damage and is slowed 2 until the end of its next turn.
On a success, it takes half as much damage.
On a critical success, it takes no damage.
A creature killed by this spell becomes a frozen statue until it thaws.
If the blast of cold air strikes a body of water or a liquid that is principally water (not including water-based creatures), it freezes the liquid to a depth of 15 centimeters over the area. The ice is an instantaneous effect, but persists as nonmagical ice. Under temperate conditions, the ice lasts 1 minute. Creatures that were swimming on the surface of frozen water are trapped in the ice. A trapped creature can use an action to make a Brawn or Nimbleness check (its choice) against your spell save Difficulty to break free.
You can increase the damage by 1d6 for each additional mana expended. If you expend 4 or more mana, the slowed level increases to 2.