Choose a minimum of 4 hit die, sacrificing that amount amount of HP as the material component of the spell. For every 4 hit die sacrificed, an orb of compressed blood flows from you, beginning to spin rapidly and forming a thin, razor-sharp disc. The rotating discs orbit within 5ft of you unless otherwise instructed.

When this spell is cast, you may make a melee spell attack for each disc against targets of your choice within 5 feet of a disc. On a hit, the target takes 3d10 slashing damage. Until the spell ends, you can use a bonus action on each of your turns to move the discs up to 30 feet to a space you can see and repeat this attack against the same target or a different one.