Elemental Rupture

You create a rupture in the planar space around you. The space within 15 feet of you is filled with bursts of energy from the elemental planes. This area becomes difficult terrain for any creatures other than you and any time a creature enters the area for the first time on a turn or starts its turn there, it must make a Dexterity saving throw. On a failed save, the creature takes 3d10 damage of a type determined by rolling a d4. Creatures take half as much damage on a successful save.

1 Fire

2 Lightning

3 Cold (hail)

4 Bludgeoning (earth)

At higher levels. When you cast this spell using a spell slot of 4th level or higher, the damage increases by 1d10 for each slot level above 3rd.