Mortuary + Moldervine Reclamation + Hangarback Walker

Mortuary

Moldervine Reclamation

Hangarback Walker

How it works

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

This clever loop turns the zero-cost casting of Hangarback Walker into a self-sustaining engine of life and card draw. Because the construct enters with no toughness, it immediately hits the graveyard, which simultaneously fires off Mortuary to recycle the card back to the top of your library and Moldervine Reclamation to draw it right back into your hand. Repeating this seamless cycle lets you filter through your entire deck while gaining infinite life and triggering any number of enter-the-battlefield, death, or storm effects along the way.