Embo, Quiet Assassin

Embo, Quit Assassin costs {1} less to cast for each
card in your graveyard.
{1}{t} sacrafice target creature, you gain life equal
to that creatures toughness. If that creature was a
bounty hunter, you gain double that.
When there are 5 or more creature cards in your
graveyard, Embo, Quiet Assassin gains +3/+1 and,
When Embo, Quiet assassin attacks, put target
bounty hunter from your graveyard to the
battlefield tapped.