Mortuary + Bolas's Citadel + Blood Pet + Funeral Room // Awakening Hall

Mortuary

Bolas's Citadel

Blood Pet

Funeral Room // Awakening Hall

How it works

1. Activate Blood Pet by sacrificing it.
2. When Blood Pet dies, Mortuary and Funeral Room // Awakening Hall trigger.
3. Resolve the Mortuary trigger, putting Blood Pet from your graveyard onto the top of your library.
4. Resolve the Funeral Room // Awakening Hall trigger, causing you to gain 1 life and each opponent to lose 1 life.
5. Cast Blood Pet from the top of your library by paying 1 life.
6. Repeat.

This cunning loop turns the top of your library into an inexhaustible engine by combining Bolas's Citadel's ability to cast spells from the top of your library with life payments instead of mana. When you sacrifice Blood Pet, Mortuary intercepts it on the way to the graveyard to neatly place it right back on top of your library, ready to be recast into Bolas's Citadel's life-paying embrace. Meanwhile, the Awakening Hall half of Funeral Room // Awakening Hall acts as a relentless drain-and-gain station, turning every iteration of this sacrifice cycle into a net-neutral life exchange that fuels the Citadel while slowly draining the table dry.