Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Altar of Dementia + Accomplished Automaton

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

Altar of Dementia

Accomplished Automaton

How it works

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

This clever loop relies on the transforming front and back of Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight to grant persistent immortality to your team, allowing Isilu, Carrier of Twilight's face to give Accomplished Automaton persist. When you sacrifice the Automaton to Altar of Dementia, it returns with a -1/-1 counter, but its fabricate ability immediately triggers upon re-entry to place a +1/+1 counter on it. Because +1/+1 and -1/+1 counters annihilate each other as a state-based action, the Automaton clears its own slate and can die over and over again to endlessly mill your opponents.