Earthen Spear

You magically mould some earth within range into a point that strikes towards your enemies in a line 15 foot long and 5 foot wide. Each creature in the line must make a Dexterity saving throw. A creature takes 3d10 piercing damage on a failed Dexterity save, or half as much damage on a successful one.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the line increases by 10 foot in length for each slot level above 1st.