Erris, Mistress of the Dead

{t}: You may cast target creature card from a graveyard this turn, you may spend mana as
though it were mana of any color to cast that creature, it is a black zombie in addition to it's
other colors and types. If a creature cast this way
would be put into a graveyard exile it instead.
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"Life is short they say, but I'll make it last a little
longer."