Bone shard

This spell uses the skeletal remains of a corpse (must have bones) to create a projectile weapon. Choose the corpse of a creature within 30ft. Fragments of bones from the corpse splinter off and fly toward selected target within 30ft of the corpse. Make a number of ranged spell attacks as listed below, on a hit the shards deal 1d4 piercing damage. Each shard can have a different target.

tiny:1

small: 3

medium:4

large:6

huge:8

gargantuan:12

The caster of the spell must have knowledge of a corpse's location to be used to cast the spell. Corpses in hard cover such as an enclosed coffin, a block of ice,  or buried in mud cannot be used. Corpses buried in soft cover such as loose soil, shallow water, or an open sarcophagus can be used.