Cavalier of Night + Mirror Image + Yahenni, Undying Partisan

Cavalier of Night

Mirror Image

Yahenni, Undying Partisan

How it works

1. Activate Yahenni by sacrificing Mirror Image.
2. When Mirror Image dies, its last ability from Cavalier of Night triggers, returning itself from your graveyard to the battlefield as a copy of Cavalier of Night.
3. When Mirror Image enters the battlefield, its first triggered ability from Cavalier of Night triggers; choose not to sacrifice a creature.
4. Resolve the Yahenni ability from step 1.
5. Repeat.

This elegant recursive loop turns your graveyard into a revolving door of sacrifice value, fueled by the clever substitution of Mirror Image copying Cavalier of Night. Because Mirror Image enters the battlefield as a copy of Cavalier of Night, it inherits that creature's death trigger—meaning whenever you use Yahenni, Undying Partisan to sacrifice the cloned Cavalier of Night, it will spot its own demise and pull itself right back out of the graveyard to do it all over again. As an added bonus, every single iteration of this cycle feeds Yahenni, Undying Partisan with a fresh +1/+1 counter while netting you endless sacrifice, entry, and death triggers.