The Mold Incarnate

Indestructible, Ward - Sacrifice three lands

At the beginning of each player’s upkeep, each player sacrifices a creature, discards a card, and puts a -1/-1 counter on each creature they control.

Whenever a creature dies, proliferate, then you gain 2 life.

At the beginning of your end step, if no creatures remain on the battlefield, you win the game.

“The house stopped breathing. That’s when I knew it was over.”