Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Mikaeus, the Unhallowed + Altar of Dementia

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

Mikaeus, the Unhallowed

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing another nontoken non-Human creature
2. When the creature dies, its undying ability triggers, returning the creature from your graveyard to the battlefield with a +1/+1 counter on it.
3. Activate Altar of Dementia by sacrificing the creature with a +1/+1 counter on it.
4. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. Resolve the Altar of Dementia abilities from step 1 and 3.
6. Repeat.

This looping self-mill engine thrives on the clever interplay between Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight and Mikaeus, the Unhallowed, whose passive stat boosts and counter-granting abilities transform any ordinary creature into a perpetual motion machine. By utilizing Mikaeus, the Unhallowed's lord effect granting undying alongside Isilu's flipped side granting persist, a creature can bounce back and forth between the battlefield and the graveyard indefinitely as its counters continuously cancel each other out. Altar of Dementia harnesses this endless cycle of life and death, turning each sacrifice into fuel to mill target players out entirely while triggering infinite entry and death events.