Putrid Goblin and Butcher Ghoul in your graveyard.
({2} magic symbol) available.
Steps
Activate Lazav by paying ({2} magic symbol) , choosing to have it become a copy of Putrid Goblin if it doesn't have a -1/-1 counter on it, or Butcher Ghoul otherwise.
When Lazav dies, if it was a copy of Putrid Goblin, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
Otherwise, Lazav's undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
When Lazav enters the battlefield, it triggers, causing you to surveil 1.