Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Mikaeus, the Unhallowed + Blasting Station

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

Mikaeus, the Unhallowed

Blasting Station

How it works

1. Activate Blasting Station by tapping it and 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. When the creature enters, Blasting Station triggers, untapping Blasting Station.
4. Activate Blasting Station by tapping it and sacrificing the creature with a +1/+1 counter on it.
5. When the creature dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
6. When the creature enters, Blasting Station triggers, untapping Blasting Station.
7. Resolve the Blasting Station abilities from step 1 and 4.
8. Repeat.

This loop creates an endless cycle of damage and sacrifice by playing off the mechanical interplay between Mikaeus, the Unhallowed and Isilu, Carrier of Twilight (the back face of Eirdu, Carrier of Dawn). Because Mikaeus grants non-Human creatures undying while Isilu grants other nontoken creatures persist, a creature can alternate between entering with a +1/+1 counter and a -1/-1 counter as it dies and returns, with those counters perpetually canceling each other out. Blasting Station serves as the engine's catalyst and payoff, effortlessly converting each enter-the-battlefield and death event into targeted damage while untapping itself to repeat the process.