Whirling Blades 2014

You produce a storm of metal shards that occupy a 5-foot diameter sphere in a space you can see within range. A creature takes 4d4 slashing damage when it enters the spell’s area for the first time on a turn or starts its turn there.

As an action, you can cause the blades to point and shoot at a creature within 30 feet of the sphere. Make a ranged spell attack. On a hit, targets take 4d4 piercing damage, or half as much damage on a miss. Hit or miss, the spell then ends.

When you cast this spell using a spell slot of 3rd level or higher, the damage increases by 2d4 for each slot level above 2nd.