|Casting Time||1 action|
|Duration||Conc., up to 1 minute|
|Components||V S M (Glass)|
You fill a point you choose in a 5 foot cube. A creature takes 4d4 slashing damage when it enters the area for the first time on a turn or starts its turn there.
At Higher Levels: The damage increases by 2d4 for each slot level above 2nd.