Babsy's Invisible Wall

The caster performs a ritual that causes the gems used in the spell to resonate, creating an invisible wall up to 100 ft. long and 10 feet high. Those with truesight or under the effects of the See Invisibility spell can see a transparent, paper-thin barrier. The wall has an AC of 15 and 30 hit points per square feet. When a square foot is destroyed, the pieces of the wall shatter and disappear. The entire wall can be destroyed with a Dispel Magic spell. It rolls flat rolls for saving throws.