Mortisan Boneshaper

Pay X Bone Tithe counters: Place a Skeleton
creature with mana cost twice X or less from
your hand or graveyard onto the battlefield.

"It is the duty of the Boneshapers to create the vast edifices and fortresses of the Ossiarchs. In truth, these
are distortions of the sculptors art into something
warlike, horrific and morbid, intended only to venerate
an unending regime of death."