Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Umbral Collar Zealot + Vengeful Vampire

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

Umbral Collar Zealot

Vengeful Vampire

How it works

1. Activate Umbral Collar Zealot by sacrificing Vengeful Vampire
2. When Vengeful Vampire dies, its undying ability triggers, returning it from your graveyard to the battlefield with a +1/+1 counter on it.
3. Activate Umbral Collar Zealot by sacrificing Vengeful Vampire
4. When Vengeful Vampire dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it.
5. Resolve both Umbral Collar Zealot abilities from step 1 and 3.
6. Repeat.

This clever loop relies on the constant rebirth of Vengeful Vampire by cycling back and forth between its undying and persist triggers. Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight is the linchpin that grants Vengeful Vampire its persist ability on its back side, while the vampire's native undying ability handles the other half of the cycle. Umbral Collar Zealot acts as the engine, providing a repeatable sacrifice outlet that conveniently fuels your graveyard strategy with surveil triggers every single time a creature is fed to it.