Arcane Heist

You may cast target instant or sorcery card
from an opponent's graveyard without paying
its mana cost. If that spell would be put into
their graveyard, exile it instead.

Cipher (Then you may exile this spell card encoded
on a creature you control. Whenever that creature
deals combat damage to a player, its controller may
cast a copy of the encoded card without paying its
mana cost.)