Havengul Lich + Grimgrin, Corpse-Born + Elven Chorus + Skittering Precursor

Havengul Lich

Grimgrin, Corpse-Born

Elven Chorus

Skittering Precursor

How it works

1. Activate Grimgrin's ability from Elven Chorus by tapping Grimgrin, adding one mana.
2. Activate Grimgrin by sacrificing the creature castable for one mana, untapping Grimgrin and putting a +1/+1 counter on it.
3. When that creature dies, Skittering Precursor triggers, creating a creature token or a token that adds mana.
4. If you created a creature token, repeat steps 1 and 2 to sacrifice that token and add an additional mana.
5. If you created a token that adds mana, instead activate that token to add mana.
6. Activate Havengul Lich by paying 1, allowing you to cast the sacrificed creature from your graveyard this turn.
7. Cast that creature from your graveyard by paying one mana.
8. Repeat.

This clever loop transforms your graveyard into an endless engine of growth and resources by weaving together a web of recursive casting and sacrifice. It all starts with Elven Chorus, which quietly turns Grimgrin, Corpse-Born into a mana source simply by tapping, allowing you to feed that same Grimgrin by sacrificing a creature. Whenever a nontoken permanent meets its end here, Skittering Precursor swoops in to generate a fresh Eldrazi Spawn token to keep the momentum going. Meanwhile, Havengul Lich stands ready to continually fish your fallen threats right back out of the graveyard so they can be cast over and over again, fueling unstoppable death triggers and massive stat gains.