Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Spawning Pit + Scholar of New Horizons

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

Spawning Pit

Scholar of New Horizons

How it works

1. Activate Spawning Pit by sacrificing Scholar of New Horizons.
2. When Scholar of New Horizons 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 Spawning Pit ability.
4. Repeat.