Upheaval

You target a twenty square foot area and turn it into rough terrain for the duration of the spell, or until you lose concetration. Creatures that start their turn in the area, or enter it on their turn, must make a saving throw against your spell save DC. They take 2d10 piercing damage, or half as much on a successful save.

When you upcast this spell, you can add an additional 1d10 for each level above 1st.