Hexproof (This permanent can't be the target of spells or abilities your opponents control.) Whenever a creature card is put into an opponent's graveyard from anywhere, you may have Lazav, Dimir Mastermind become a copy of that card, except its name is Lazav, Dimir Mastermind, it's legendary in addition to its other types, and it has hexproof (This permanent can't be the target of spells or abilities your opponents control.) and this ability.