Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Yahenni, Undying Partisan + Big Mother Mouser

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

Yahenni, Undying Partisan

Big Mother Mouser

How it works

1. Activate Yahenni by sacrificing Big Mother Mouser.
2. When Big Mother Mouser dies, its persist ability triggers, returning it from your graveyard to the battlefield without a -1/-1 counter on it due to its replacement effect.
3. Resolve the Yahenni ability.
4. Repeat.