Magicka Serella
8-level Conjuration
You cause a hail of great stones to fall from the sky, battering and burying your enemies. You create a cylinder that is 10 feet tall with a 60 foot radius, centered on a point you can see within range. Each creature within the area of effect must make a Dexterity saving throw. A creature takes 10d8 bludgeoning damage on a failed save, or half as much damage on a successful one. In addition, on a failed save a creature is knocked prone and is restrained.