As an action, you can create this vial of light blue liquid. As an action, a creature can throw the vial at a point within 5 meters. A thin layer of ice covers the ground in a sphere that is twice as big as normal centered on the point and turns it into difficult terrain for the duration.
When the ice appears, each creature standing in its area must succeed on a Reflex saving throw or fall prone. A creature that enters the area or ends its turn there must also make the saving throw.
A 1-meter square of ice has 3 health. The ice is an instantaneous effect, but persists as nonmagical ice. Under temperate conditions, the ice lasts 1 minute. In tropical environments, it might last only half as long. In cold environments where ice and snow persist without melting, it could last indefinitely.
You can expend 1 additional catalyst so a number of objects equal to the catalysts expended within the sphere that aren’t being worn or carried are frozen cold for the same duration as the ice slick. A creature that touches an object covered in this ice takes 4d6 cold damage when it touches the object and at the end of each of its turns while touching the object.