Arctic Storm

You toss the glass into the air, weaving magic through the individual grains of glass you freeze the weave and the ground around you in a 20ft radius around you. This spell alone turns the ground into difficult terrain for all creatures but yourself, and deals 4d6 cold damage to all enemies in the area if they fail a Dexterity saving throw, on a success they take no damage. 5 large ice pillars form within this area. If you summon these pillars on an Hostile creatures that is on the edge of the area, then the hostile creatures is pushed 5ft into the area to you and dealt 1d6 bludgeoning damage. If any creature is slammed into another pillar or another wall, then the target will take 1d6 bludgeoning damage per pillar hitting the creature. You gain +5 pillars per spell level above 3rd.