When Lazav, the Multifarious enters the battlefield, surveil 1. (Look at the top card of libarary. You may put it into your graveyard.)
: Lazav, the Multifarious becomes a copy of target creature card in your graveyard wiht converted mana cost X, except its name is Lazav, the Multifarious, it's legendary in addition to its other types,a nd it has this ability.