Mortuary + Bolas's Citadel + Yahenni, Undying Partisan + Fear of Lost Teeth

Mortuary

Bolas's Citadel

Yahenni, Undying Partisan

Fear of Lost Teeth

How it works

1. Activate Yahenni by sacrificing Fear of Lost Teeth.
2. When Fear of Lost Teeth dies, it and Mortuary triggers.
3. Resolve the Mortuary trigger, putting Fear of Lost Teeth from your graveyard onto the top of your library.
4. Resolve the Fear of Lost Teeth trigger, causing you to gain 1 life and dealing 1 damage to any target.
5. Resolve the Yahenni ability.
6. Cast Fear of Lost Teeth from the top of your library by paying 1 life due to Bolas's Citadel.
7. Repeat.

This clever loop relies on Bolas's Citadel to bypass traditional mana costs entirely, letting you recast a fallen creature straight off the top of your library for a mere 1 life. As you feed Fear of Lost Teeth to Yahenni, Undying Partisan's sacrifice ability, Mortuary immediately intercepts the creature as it hits the graveyard, neatly stacking it back onto the top of your library for the Citadel to grab again. Meanwhile, Fear of Lost Teeth's own death trigger cushions the life payment by gaining you 1 life each iteration while simultaneously burning down your opponents with infinite damage.