Boiling Earth

You feel the power within the earth itself, focusing it beneath a 20ft square of land you can see.

Upon casting the spell, the ground within the targeted area explodes, being reduced to a bubbling pool of magma. Each creature within the 20ft square of land must make a Dexterity saving throw. They take 8d8 bludgeoning damage on a failed saving throw, or half as much damage on a successful one. On a successful saving throw, they are thrown outside the spell's area, landing prone in a 5ft square adjacent to it.

Those that fail the saving throw fall into the pit of lava, taking an additional 5d8 fire damage. Anyone starting their turn or moving into the effected area must make a Dexterity saving throw. On a failed saving throw, they take 5d8 fire damage and begin suffocating from the sulfuric fumes.