Mortuary + Ashnod's Altar + Bolas's Citadel + Crookshank Kobolds

Mortuary

Ashnod's Altar

Bolas's Citadel

Crookshank Kobolds

How it works

1. Activate Ashnod's Altar by sacrificing Crookshank Kobolds
2. When Crookshank Kobolds dies, Mortuary triggers, putting Crookshank Kobolds from your graveyard onto the top of your library.
3. Cast Crookshank Kobolds from the top of your library by paying 0 life.
4. Repeat.

This elegant loop relies on Crookshank Kobolds—or any other creature with a mana value of zero—as the ultimate expendable fuel. Ashnod's Altar provides a steady stream of colorless mana as you repeatedly send the Kobolds to the graveyard, while Mortuary instantly recycles them right back to the top of your library. From there, Bolas's Citadel allows you to play the creature directly off your library for zero life, completely bypassing traditional mana costs. The result is a self-sustaining engine that generates infinite colorless mana, sacrifice triggers, and storm count with absolute ease.