Prerequisite: Ability to cast base cost 5 spells.

Effect: So long as you have at least 5 MP conserved and know an Ice spell, you can coat a 10ft square with a layer of slippery ice. Any creature in the area when the ability is used is cast must make a successful Reflex save or fall. A creature can walk within or through the area of ice at half normal speed by making an Acrobatics check (DC equal to the normal saving throw DC). Failure means it can't move that round (and must then make a Reflex save or fall), while failure by 5 or more means it falls (see the Acrobatics skill for details). Creatures that do not move on their turn do not need to make this check and are not considered flat-footed.