Goetia

Annihilator 2 (Whenever this creature attacks, defending player sacrifices two permanents.)
At the beginning of your upkeep, each player sacrifices half the creatures they control, rounded up. If you sacrificed no creatures, Goetia deals 7 damage to you. Goetia can't be sacrificed.
"Then I shall show you. The end of your journey. The demise of human history that will redo this planet. The moment my great undertaking is completed!"