Mortuary + Shilgengar, Sire of Famine + Bolas's Citadel + Kobolds of Kher Keep

Mortuary

Shilgengar, Sire of Famine

Bolas's Citadel

Kobolds of Kher Keep

How it works

1. Activate Shilgengar by sacrificing Kobolds of Kher Keep
2. When Kobolds of Kher Keep dies, Mortuary triggers, putting Kobolds of Kher Keep from your graveyard onto the top of your library.
3. Resolve the Shilgengar ability.
4. Cast Kobolds of Kher Keep from the top of your library by paying 0 life.
5. Repeat.

This clever loop sets up an endless engine fueled by the zero-cost devotion of Kobolds of Kher Keep. Shilgengar, Sire of Famine sacrifices the tiny creature to forge Blood tokens, while Mortuary quietly catches it on its way to the graveyard, instantly placing it right back on top of your library. From there, Bolas's Citadel allows you to play the Kobolds directly off the library for zero life, resetting the cycle entirely. The result is a cascade of infinite sacrifices and blood-token riches ready to overwhelm your opponents.