Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Grim Poppet + Yahenni, Undying Partisan

Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight

Grim Poppet

Yahenni, Undying Partisan

How it works

1. If Grim Poppet has any -1/-1 counters on it, activate it by removing a -1/-1 counter from it.
2. Repeat step 1 as necessary until Grim Poppet has no -1/-1 counters on it.
3. Activate Yahenni by sacrificing Grim Poppet.
4. When Grim Poppet dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. Resolve the Yahenni ability.
6. Repeat.
7. Resolve all Grim Poppet abilities, putting infinite -1/-1 counters on any number of creatures.

This clever loop transforms your board state into an unrelenting engine of attrition, anchored by Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight granting its vital persist ability to keep bringing creatures back. By repeatedly feeding Grim Poppet to Yahenni, Undying Partisan, you trigger endless sacrifices and deaths that continually pump Yahenni's power while recycling the Poppet. As Grim Poppet returns to the battlefield with a fresh -1/-1 counter due to Isilu's twilight side, you can strip those counters away to dismantle your opponents' boards, establishing total control over any creature that dares to show its face.