Mortuary + Tinder Wall + Susurian Voidborn + Gwenom, Remorseless

Mortuary

Tinder Wall

Susurian Voidborn

Gwenom, Remorseless

How it works

1. Activate Tinder Wall by sacrificing it.
2. When Tinder Wall dies, Mortuary and Susurian Voidborn trigger.
3. Resolve the Mortuary trigger, putting Tinder Wall from your graveyard onto the top of your library.
4. Resolve the Susurian Voidborn trigger, causing you to gain 1 life and target opponent to lose 1 life.
5. Cast Tinder Wall from the top of your library by paying 1 life.
6. Repeat.

This loop turns a simple sacrifice into a self-sustaining engine by letting Gwenom, Remorseless peer into the future and cast spells right off the top of your library for life instead of mana. When you sacrifice Tinder Wall for its red mana, Mortuary catches it on the way to the graveyard and neatly places it right back on top of your library where Gwenom can see it. Meanwhile, Susurian Voidborn watches the creature die and immediately drains your opponent while padding your life total, providing just enough life buffer to repeatedly pay Tinder Wall's alternate casting cost.