Crown of Winter

Six razor sharp icicles appear and orbit around you.  You can use a bonus action to send one of the icicles 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 4d10 cold damage. Whether you hit or miss, the icicle is expended. The spell ends early if you expend the last icicle. If you have at least five icicles remaining, you have three-quarters cover against ranged attacks. If you have two to five icicles remaining, you have half cover against ranged attacks.

At Higher Levels. When you cast this spell using a spell slot of 8th level or higher, the number of icicles created increases by one for each slot level above 7th.