Nemesi delle Fogne
Sewer Nemesis
Commander Anthology 2018
Rare
Black 
As Sewer Nemesis enters the battlefield, choose a player.
Sewer Nemesis's power and toughness are each equal to the number of cards in the chosen player's graveyard.
Whenever the chosen player casts a spell, that player puts the top card of their library into their graveyard.