Eirdu, Carrier of Dawn // Isilu, Carrier of Twilight + Slurrk, All-Ingesting + Umbral Collar Zealot

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

Slurrk, All-Ingesting

Umbral Collar Zealot

How it works

1. Activate Umbral Collar Zealot by sacrificing Slurrk.
2. When Slurrk dies, its innate ability and persist ability trigger.
3. Resolve Slurrk's innate ability, putting a +1/+1 counter on each creature you control that already has a +1/+1 counter on it.
4. Resolve Slurrk's persist ability, returning it from your graveyard to the battlefield with four +1/+1 counters on it due to its replacement effect.
5. Resolve the Umbral Collar Zealot ability.
6. Repeat.

This ingenious loop relies on Isilu, Carrier of Twilight (the back face of Eirdu, Carrier of Dawn) to grant persist to your team, ensuring that when Slurrk, All-Ingesting hits the graveyard, it comes right back with a -1/-1 counter. Because Slurrk enters with five +1/+1 counters, those -1/-1 counters immediately annihilate each other via state-based actions, leaving Slurrk ready to be sacrificed all over again to Umbral Collar Zealot's surveil-granting activation. Best of all, every time Slurrk dies, its own triggered ability sees a creature with a +1/+1 counter die and pumps your remaining creatures, turning a simple sacrifice engine into an endless storm of triggers.