The Forgotten Realms [Fan Version]

You rupture the veil of reality at a point you can see within range, releasing an explosive burst of chaotic energy. All creatures within a 20-foot-radius sphere must make a Dexterity saving throw. On a failed save, a creature takes 8d6 force damage as reality itself cracks and tears apart around them. On a successful save, a creature takes half as much damage. The explosion disrupts the fabric of space, causing the area to become difficult terrain for 1 minute after the spell ends.