Nullsong Nightgathering

Sacrifice a creature: Choose a creature card in
your graveyard. Until end of turn, you may cast
that card from your graveyard. Creatures cast
this way cost {1} less to cast.
_________________________________________
The Precinct of Nullsong congregates on the ground of
a dead leyline outside the Onakke Catacombs every
fortnight, conducting a ritual in which they force a
living being's body into the dead stem of the leyline,
Sculpting their body into a Krasis for a soul from the
adjace