Out of the Tombs + Leveler + Merfolk Windrobber

Out of the Tombs

Leveler

Merfolk Windrobber

How it works

1. Cast Leveler by paying 5.
2. When Leveler enters the battlefield, it triggers, exiling your library.
3. Activate Merfolk Windrobber by sacrificing it, causing you to return Merfolk Windrobber from your graveyard to the battlefield due to Out of the Tombs.
4. Repeat step 3.

This loop relies on Leveler entering the battlefield and immediately wiping your library clean, setting up a state where you have no cards left to draw. With your library empty, Out of the Tombs steps in to redirect any card draw into a reanimation effect, pulling a creature straight from your graveyard instead. By sacrificing Merfolk Windrobber to draw a card, Out of the Tombs intercepts the draw and sends Merfolk Windrobber right back to the battlefield, ready to be sacrificed over and over again.