Caustic Spray

You summon a spray of searing acid which eats away at armor and flesh alike. You create a spray of acid that forms a sheet-like wall of caustic liquid. The wall is made up of three 5x5 foot square sections, which you can place at any point within range, so long as each section shares at least one side with another section and is within range. Any creature within the wall when you create must make a Dexterity saving throw. On a failure, a creature takes 6d4 acid damage and if it is wearing non-magical armor, it suffers a -3 penalty to its armor class. If this penalty decreases the armor's AC to less than 11, the armor is rendered useless and considered destroyed.

A creature that succeeds at this saving throw takes half damage. The acid then splashes harmlessly to the ground and dissipates in a puff of odious but harmless fumes. Non-magical objects made of cloth, wood, stone, or metal in the area automatically fail the saving throw and take twice as much damage.

 At higher levels: When you cast this spell using a spell slot of 2nd level or higher, you can create 2 additional sections of wall for each spell slot level above 1st.