Mortuary + Vein Ripper + Bolas's Citadel + Tinder Wall

Mortuary

Vein Ripper

Bolas's Citadel

Tinder Wall

How it works

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

This clever loop turns the top of your deck into a self-sustaining engine by letting Bolas's Citadel cast permanents directly from the library while substituting life for mana. When you sacrifice Tinder Wall for mana, its death triggers Mortuary to seamlessly recycle it back to the top of your library while also feeding Vein Ripper's life-drain ability. Because Bolas's Citadel allows you to replay Tinder Wall for a mere 1 life—which is more than offset by the life gained from Vein Ripper—you generate infinite red mana, infinite death triggers, and an endless drain of your opponent's life total.