Circling Stones

As an action, you imbue a number of semi precious stones equal to 1 plus the spells level with magic. Each stone must be worth at least 5 gp. Once imbued the stones then circle your head floating for 1 hour.

While you have at least 1 circling stone active, you can expend 1 stone to do either of the following:

- As a Bonus Action, you make a ranged spell attack against a target within 40 ft, at which point 1 stone streaks toward the target. On a hit, the target takes 1d4 force damage.

- As a Reaction, you cause 1 stone to intercede on an attack that has already successfully hit you. The damage of that attack is reduced by 1d4.

The stones are consumed when used by either of the above actions.

If you fall to 0 HP before the end of the spells duration, the spell effect ends and the stones are turned to dust and consumed.

At the end of the spells duration all un-used stones fall to the ground with no lasting spell effect.

At Higher Levels. 

When you cast this spell using a spell slot of 2nd level or higher, the range of your bonus action attack is increased by 10 ft per spell level for each slot level above 2nd.

When cast as a 3rd level spell, the damage reduction and damage die increase to d6's. As a 5th level spell they become d8's. As a 7th level spell they become d10's. As a 9th level spell they become d12's.