Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Angel of Invention + Carrion Feeder

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

Angel of Invention

Carrion Feeder

How it works

1. Activate Carrion Feeder 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. Resolve the Carrion Feeder ability.
5. Repeat.

This ingenious loop turns Eirdu, Carrier of Dawn's back face, Isilu, Carrier of Twilight, into an infinite engine by granting your nontoken creatures persist, which lets Angel of Invention return from the graveyard with a -1/-1 counter whenever it dies to Carrion Feeder. Crucially, Angel of Invention's fabricate ability triggers upon its return, placing a +1/+1 counter that immediately cancels out the -1/-1 counter, resetting its resilience for the next iteration. Meanwhile, Eirdu, Carrier of Dawn's front face can help cast creature spells using convoke along the way, though this specific execution relies entirely on Carrion Feeder and Angel of Invention cycling endlessly to churn out infinite sacrifice, death, and trigger counts.