Wall of Glass

You weave together threads of transmutation magic to transform your sphere of glass into four thin sheets of glass that must be place contiguous to one another. They total up to 1 foot wide, 20 feet tall, and 50 feet long. If a sheet of glass is subjected to an attack, it has an AC of 5 and one hit point. It automatically fails all Dexterity, Intelligence, Wisdom, and Charisma saving throws and has a +5 to Strength and Constitution saving throws. When a sheet of glass is destroyed, any creature or object within 5 feet of the sheet takes 2d4 piercing damage as a downfall of glass shards rain over it. When this happens, the space previously occupied by the wall is covered in pieces of shattered and jagged glass, causing any creature that passes through the space to take 1d4 slashing damage. The glass shards remain for the duration of the spell or until your concentration is broken.