Yogg-Saron

When you cast Yogg-Saron, reveal the top seven
cards of your library. Put all creature cards
revealed this way onto the battlefield. Put the rest
of the cards revealed this way into your graveyard.
Whenever Yogg-Saron attacks, each player exiles
the top X cards of their library, where X is
the number of creatures you control.
"All places, all things have souls. All souls can be
devoured"