Elemental knife barrage

You create a shard of ice, fire, earth and wind and fling them at one creature within range. Make a ranged spell attack against the target. On a hit, the target takes 1d10 piercing damage per shard (4d10). Hit or miss, the shard then explodes. The target and each creature within 5 feet of it must succeed on a Dexterity saving throw or take 1d6 damage corresponding to the shards. (Fire, cold, bludgeoning and slashing)

At Higher Levels. When you cast this spell using a spell slot of 5th level or higher, the damage increases by 1d6 (your choice of elemental damage) for each slot level above 4th.