Create Volcano

By burying the rock in the ground, you cause a volcano to quickly form throughout the course of an hour and spew lava and ash for twenty days, once the twenty days pass, the volcano sinks into the earth, consuming the stone.

Note: This spell is part of a series of spells meant to be stronger than the ninth level, as such, casting them extracts a toll from the user.

The caster must roll a d20; a 1-5 will deal five d6 fire damage and grant two levels of exhaustion, a 6-10 will grant two levels of exhaustion, an 11-15 will deal five d6 fire damage, and a 16-20 will grant one level of exhaustion