Volcanic Burst

A loud cracking sound occurs at a point you choose within range, as the earth erupts into a column of shattered stone and molten rock. Each creature in a 15ft radius of that point must make a Dexterity saving throw. A target takes 2d10 fire damage and 2d10 bludgeoning damage on a failed save, and the target is set on fire, and knocked prone. Until a creature takes an action to douse the fire, the creature takes 1d10 fire damage at the start of their turn. On a successful save, the creature takes half damage, and is not set on fire or knocked prone.

At Higher Levels: When you cast this spell using a spell slot of 6th level or higher, the initial fire and bludgeoning damage both increase by 1d10 for each slot level above 5th.