Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Viscera Seer + Cayth, Famed Mechanist

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

Viscera Seer

Cayth, Famed Mechanist

How it works

1. Activate Viscera Seer by sacrificing Cayth.
2. When Cayth dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Cayth enters, its fabricate ability triggers, putting a +1/+1 counter on it.
4. Resolve the Viscera Seer ability.
5. Repeat.

This loop relies on Isilu, Carrier of Twilight's static granting of persist to make sure your key creatures keep coming back from the dead. You sacrifice Cayth, Famed Mechanist to Viscera Seer, triggering persist to return Cayth with a -1/-1 counter, which is then immediately canceled out by the +1/+1 counter from Cayth's own fabricate ability. Because these counters annihilate each other upon entering, Cayth arrives with a clean slate each time, letting you repeat the cycle indefinitely alongside Eirdu, Carrier of Dawn.