Crystal Fissure (Updated)

A fissure of opalescent crystals erupt up from the ground forming a wall in a line that is 20 feet long, 10 feet high and 5 feet wide from a point in a direction you choose. Each creature in the line must make a Dexterity saving throw. A creature takes 3d6 piercing damage on a failed save, or half as much damage on a successful one. Once summoned the crystals become permanent structures in the ground until shattered by force. The crystals have an AC 13 and 50 hit points. Reducing the crystals to 0 hit points shatters the line to pieces. They emit dim light in a 10-foot radius for 1d10 hours.

This spell can be used to forcefully separate a grappled creature. If used to do so the grappling creature must succeed a Dexterity saving throw or take 3d6 piercing damage, 1d4 force damage and be separated on contact.

At Higher Levels: When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d6 for each slot level above 1st.