Mortuary + Shifting Wall + Gwenom, Remorseless

Mortuary

Shifting Wall

Gwenom, Remorseless

How it works

1. Cast Shifting Wall either from your hand by paying 0 or from the top of your library by paying 0 life.
2. Shifting Wall enters and dies as a state-based action due to having 0 toughness.
3. Mortuary triggers, putting Shifting Wall from your graveyard onto the top of your library.
4. Repeat.

This clever loop revolves around casting Shifting Wall for zero mana, leveraging its X equals zero clause so that it immediately perishes as a state-based action upon entering the battlefield. Mortuary swoops in to intercept this demise, instantly recycling the dying artifact creature back to the top of your library to keep the cycle going. Meanwhile, Gwenom, Remorseless enables you to play that very same top card directly from your library, substituting its mana cost with a life payment instead.