Mortuary + Woe Strider + Bolas's Citadel + Crookshank Kobolds

Mortuary

Woe Strider

Bolas's Citadel

Crookshank Kobolds

How it works

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

This clever loop transforms free sacrifice into a self-sustaining engine by turning the top of your library into an endless armory. With Bolas's Citadel allowing you to cast spells directly from the top of your library using life instead of mana, you can repeatedly deploy Crookshank Kobolds for zero life. Every time that little creature hits the graveyard, Mortuary instantly catches it and tucks it right back onto the top of your library. Meanwhile, Woe Strider provides both the sacrifice outlet to keep the cycle turning and a Goat token to jumpstart the process, letting you churn through infinite death triggers, enter-the-battlefield events, and storm count while sculpting your draws with infinite scry.