Brittle

You touch a nonmagical object or a section of a solid surface no larger than a 5-foot-diameter area, deconstructing its core material framework and rendering it temporarily brittle.

Until the start of your next turn, the affected object or area gains vulnerability to all damage.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the maximum size of an area you can effect increases by 5 feet for each slot level above 1st.