Mortuary + Harvester of Souls + Marketback Walker

Mortuary

Harvester of Souls

Marketback Walker

How it works

1. Cast Marketback Walker by paying 0.
2. Marketback Walker enters and dies as a state-based action due to having 0 toughness, triggering Mortuary and Harvester of Souls.
3. Resolve the Mortuary trigger, putting Marketback Walker from your graveyard onto the top of your library.
4. Resolve the Harvester of Souls trigger, causing you to draw a card, thus drawing Marketback Walker from your library.
5. Repeat.

By casting Marketback Walker for zero mana, you immediately send it to the graveyard as a state-based action, which starts a delightful recursive loop. This death sets off both Mortuary—putting the Walker right back onto the top of your library—and Harvester of Souls, whose triggered ability allows you to draw a card and put the Walker directly into your hand. You can then replay the Walker for free to trigger infinite creature entries, exits, deaths, and draw triggers, all fueled by the synergy of these three cards.