Sisters Van-Granst

Cards in your opponent's graveyard can't leave
the graveyard.
If another creature you control would be put
into a graveyard by a spell or ability your
opponents control, you may pay life equal to
that card's mana value. If you do, put that card
in your hand at the beginning of your next
upkeep.
When Sisters Van-Granst dies, exile target
card in a graveyard.