Polar Vortex

You create a swirling storm of ice and snow in a 10-meter radius centered on a point you can see within 40 meters. The area becomes difficult terrain and is heavily obscured. Each creature that starts its turn in the area takes INT Die Cold(2) damage and must succeed on a RES Save against your INT Check or have its movement speed reduced to 0 until the start of its next turn. The vortex lasts for 5 rounds. While active, you may use a Bonus Action during your turn to move the center of the Vortex up to 10 meters in any direction.