Frost Worm Snare

The snare takes the form of a Tiny frost worm clockwork toy. When a creature enters its square, the snare activates, causing the worm to let loose a of frost in the direction from which the creature entered the square. For instance, if a creature entered the square coming from the south, the worm would shoot the line south, to hit any allies of the triggering creature. Those within the line take |options:area-damage] damage with a save. After spitting its frost, the snare falls apart.