Crystalbreath

You unleash a breath of light blue energy in a 10-foot cone in front of you. This energy hardens into strong crystalline structures that engulf enemies inside. Each creature within the area must succeed on a Dexterity saving throw or become Petrified for 1 hour. A creature can make a Strength saving throw at the end of each of its turns, breaking the crystal from
the inside on a success, freeing itself. A section of the crystal surrounding a creature has AC 15, 25 hit points, as well as immunity to poison and psychic damage.

When it is reduced to 0 hit points, the creature inside is freed. Any damage that targets the crystal also targets the Petrified creature inside.

A creature of huge size or larger can only become Restrained by this spell.