Seven clusters of ice knives appear and orbit your head until the spell ends. You can use a bonus action to send one of the clusters streaking toward one creature or object within 120 feet of you. When you do so, make a ranged spell attack. On a hit, the target takes 4d12 cold damage. Whether you hit or miss, the cluster is expended. The spell ends early if you expend the last cluster.
If you have four or more clusters remaining, their is a noticeable chill in the air within a 60 foot radius of you. If you have one to three clusters remaining, this chill is limited to a 30-foot radius. When this chill present, all standing water nearby begins to freeze and the vapor from an individual's breathe is visible.
At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the number of clusters created increases by two for each slot level above 7th.