Remembrance + Mortuary + Crookshank Kobolds + Yahenni, Undying Partisan

Remembrance

Mortuary

Crookshank Kobolds

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Crookshank Kobolds.
2. When Crookshank Kobolds dies, Mortuary and Remembrance trigger.
3. Resolve the Mortuary trigger, putting Crookshank Kobolds from your graveyard on top of your library.
4. Resolve the Remembrance trigger, searching your library for Crookshank Kobolds and putting it into your hand.
5. Resolve the Yahenni ability.
6. Cast Crookshank Kobolds by paying 0.
7. Repeat.

This loop uses Yahenni, Undying Partisan as a free sacrifice outlet for Crookshank Kobolds, which conveniently costs zero mana to recast every time. Whenever the Kobolds meet their doom, Mortuary steps in to neatly recycle the creature straight to the top of your library, while Remembrance exploits that exact death to tutor another copy right into your hand. By constantly sacrificing, casting, and repeating the cycle, you generate an endless storm count alongside infinite death, sacrifice, and entry triggers.