Havengul Lich + Grimgrin, Corpse-Born + Genesis Chamber + Elven Chorus

Havengul Lich

Grimgrin, Corpse-Born

Genesis Chamber

Elven Chorus

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. Activate Grimgrin's ability from Elven Chorus by tapping Grimgrin, adding one mana.
4. Activate Havengul Lich by paying 1, allowing you to cast the creature castable for one mana from your graveyard this turn.
5. Cast that creature spell from your graveyard by paying it mana cost.
6. When you cast that creature or when it enters, Genesis Chamber triggers, creating a creature token.
7. Activate Grimgrin by sacrificing the creature token, untapping Grimgrin and putting a +1/+1 counter on it.
8. Repeat.

This elegant loop transforms the graveyard into an engine of endless growth, powered by the incredible mana-granting aura of Elven Chorus that lets you tap Grimgrin, Corpse-Born for any color of mana. With that mana fueling Havengul Lich's activation, you can repeatedly pull a creature right back out of your graveyard and cast it. Every time a creature enters, Genesis Chamber steps in to generate a Myrmidonian sacrifice fodder token. You can then feed that token back into Grimgrin, Corpse-Born's sacrifice ability to untap him, stacking up infinite +1/+1 counters and infinite death triggers along the way.