Blood spear

After receiving a wound that bleeds you form the lost blood into one or multiple spears that you fire at a target. A creature takes damage equal to the casters total damage, i.e. the amount of hit points missing. Also, this spell may be cast as an action on the casters turn if they have wounds already, and can sacrifice hit points to add to the damage, if done this way make a range spell attack. The target also gets a dex saving throw to half damage