You render the ground in the affected area free of all friction. Any creature within the affected squares must immediately make an Agility saving throw vs your Spellcasting skill TN.

• Success: The creature remains standing, but they must spend one additional meter of movement to exit the square safely.
• Failure: The creature falls Prone.

Any creature that enters or begins their turn in an affected square must also make a saving throw, as listed above, or fall Prone.