Mortuary + Wild Cantor + Bolas's Citadel + Embalmed Ascendant

Mortuary

Wild Cantor

Bolas's Citadel

Embalmed Ascendant

How it works

1. Activate Wild Cantor by sacrificing it.
2. When Wild Cantor dies, Mortuary and Embalmed Ascendant trigger.
3. Resolve the Mortuary trigger, putting Wild Cantor from your graveyard onto the top of your library.
4. Resolve the Embalmed Ascendant trigger, causing you to gain 1 life and each opponent to lose 1 life.
5. Cast Wild Cantor from the top of your library by paying 1 life.
6. Repeat.

This brilliant loop turns the top of your library into an endless engine of life and mana. Bolas's Citadel does the heavy lifting by letting you bypass mana costs entirely, letting you cast spells directly from the top of your library for a mere 1 life. When you sacrifice Wild Cantor for mana, Mortuary instantly catches it on the way to the graveyard and tucks it right back onto the top of your library. Meanwhile, Embalmed Ascendant amplifies every single death trigger to drain your opponents and gain you life, easily offsetting the life payment required by Bolas's Citadel.