Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Ashnod's Altar + Angel of Invention

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

Ashnod's Altar

Angel of Invention

How it works

1. Activate Ashnod's Altar by sacrificing Angel of Invention.
2. When Angel of Invention dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
3. When Angel of Invention enters, its fabricate ability triggers, putting a +1/+1 counter on it.
4. Repeat.

This elegant loop relies on Eirdu, Carrier of Dawn's backside, Isilu, Carrier of Twilight, to grant persist to your other nontoken creatures, allowing Angel of Invention to crawl back from the graveyard whenever it hits the bin. Ashnod's Altar acts as the sacrificial engine that converts the Angel into the colorless mana needed to fuel your strategies, while simultaneously triggering that persist loop. When the Angel returns thanks to persist, its fabricate ability places a +1/+1 counter on it that immediately cancels out its -1/-1 counter, resetting the creature so you can feed it back into the Altar for infinite sacrifices, leaves-the-battlefield triggers, and mana.