Demonlord Belzenlok + Selective Memory + Laboratory Maniac

Demonlord Belzenlok

Selective Memory

Laboratory Maniac

How it works

1. Cast Selective Memory by paying 3, exiling all nonland cards in your library.
2. Cast Demonlord Belzenlok by paying 4.
3. When Demonlord Belzenlok enters the battlefield, it triggers, exiling the remainder of your library.
4. The next time you would draw a card, you win the game due to Laboratory Maniac.

This clever brew uses Selective Memory to surgically remove every single nonland card from your deck, ensuring your library is completely empty before you ever touch your draw step. Once the deck is hollowed out, you drop Demonlord Belzenlok to trigger its entering-the-battlefield ability, which mercilessly devours the remaining land cards until nothing is left. With your library entirely in exile, Laboratory Maniac's replacement effect is waiting in the wings to turn any subsequent draw into an instant victory.