Mortuary + Dross Harvester + Bolas's Citadel + Tinder Wall

Mortuary

Dross Harvester

Bolas's Citadel

Tinder Wall

How it works

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

This clever loop turns the self-sacrificing mana of Tinder Wall into an engine that feeds itself indefinitely. With Mortuary quietly stacking Tinder Wall back onto your library every time it hits the graveyard, Bolas's Citadel steps in to let you cast it right back off the top for a mere 1 life. Meanwhile, Dross Harvester offsets the life you pay into Bolas's Citadel by padding your total with every death trigger, netting you infinite life, storm count, and red mana in the process.