+Death, +Rattle (2)
Delve (Each card you exile from your graveyard while casting this spell pays for .)
Destroy target nongreen creature. It can't be regenerated.
Flash
This spell costs less to cast for each creature that died this turn.
When Death-Rattle Oni enters the battlefield, destroy all other creatures that were dealt damage this turn.
Gatherer works better in the Companion app!
less to cast for each creature that died this turn.