Mortuary + Carmen, Cruel Skymarcher + Bolas's Citadel + Tinder Wall

Mortuary

Carmen, Cruel Skymarcher

Bolas's Citadel

Tinder Wall

How it works

1. Activate Tinder Wall by sacrificing it.
2. When Tinder Wall dies, Mortuary and Carmen trigger.
3. Resolve the Mortuary trigger, putting Tinder Wall from your graveyard onto the top of your library.
4. Resolve the Carmen trigger, causing you to gain 1 life and put a +1/+1 counter on Carmen.
5. Cast Tinder Wall from the top of your library by paying 1 life.
6. Repeat.

This ingenious engine leverages Bolas's Citadel to bypass traditional mana costs, allowing you to cast Tinder Wall directly from the top of your library simply by paying life instead. When you sacrifice Tinder Wall for red mana, Mortuary catches it on the way to the graveyard and neatly stacks it right back on top of your library. Meanwhile, Carmen, Cruel Skymarcher watches the sacrifice happen, growing steadily stronger with a fresh +1/+1 counter while recovering your life total to sustain the Citadel's payments. The result is an unbreakable loop that continually recasts the same creature, generating endless mana, life, and triggers.