Naru Meha, Master Wizard + Feign Death + Yahenni, Undying Partisan

Naru Meha, Master Wizard

Feign Death

Yahenni, Undying Partisan

How it works

1. Cast Feign Death by paying its mana cost.
2. Holding priority, cast Naru Meha by paying its mana cost.
3. When Naru Meha enters, it triggers, copying Feign Death, with the copy targeting Naru Meha.
4. Resolve the copy of Feign Death.
5. Holding priority, activate Yahenni by sacrificing Naru Meha.
6. When Naru Meha dies, it triggers, returning it from your graveyard to the battlefield.
7. Repeat from step 3.
8. Resolve all Yahenni abilities from step 5.

This clever loop is centered around Naru Meha, Master Wizard, whose entrance triggers a copy of Feign Death targeting Naru Meha itself so that it is primed to return upon death. To continuously trigger this cycle, you sacrifice Naru Meha to Yahenni, Undying Partisan, which not only sends the Wizard straight to the graveyard—triggering Feign Death to bring it right back—but also pumps Yahenni with a +1/+1 counter for its trouble. Because Naru Meha's entry ability goes back on the stack every time it returns, you can endlessly duplicate the Feign Death effect to sustain the sacrifice loop and churn out infinite death and ETB triggers.