Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Viscera Seer + Evernight Shade

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

Viscera Seer

Evernight Shade

How it works

1. Activate Viscera Seer by sacrificing Evernight Shade
2. When Evernight Shade dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. Resolve the Viscera Seer ability.
4. Activate Viscera Seer by sacrificing Evernight Shade
5. When Evernight Shade dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. Evernight Shade enters and dies as a state-based action due to having 0 toughness. Its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
7. Resolve the Viscera Seer ability from step 4.
8. Repeat from step 4.