Squandered Resources + Aftermath Analyst + Chthonian Nightmare + Retreat to Emeria

Squandered Resources

Aftermath Analyst

Chthonian Nightmare

Retreat to Emeria

How it works

1. Activate Squandered Resources by sacrificing a land, adding one mana of any color that land could produce.
2. Repeat step 1 until you have at least 4 available and/or you control no other mana-producing lands.
3. Activate Aftermath Analyst by paying 3 and sacrificing it, returning all land cards from your graveyard to the battlefield tapped.
4. When the lands enter the battlefield, Retreat to Emeria triggers that many times, creating that many creature tokens.
5. Activate Chthonian Nightmare by paying EE, sacrificing a creature and returning Chthonian Nightmare from the battlefield to your hand, returning Aftermath Analyst from your graveyard to the battlefield.
6. When Aftermath Analyst enters the battlefield, it triggers, causing you to mill three cards.
7. Cast Chthonian Nightmare by paying 1.
8. When Chthonian Nightmare enters the battlefield, it triggers, causing you to get EEE.
9. Repeat.

This intricate loop transforms a graveyard full of land and a bit of starting mana into an overwhelming cascade of resources. You begin by cycling your lands away using Squandered Resources to generate the necessary black and green mana, while Aftermath Analyst pulls them all straight back to the battlefield in a massive wave. That sudden influx of lands triggers Retreat to Emeria repeatedly, flooding your board with Kor Ally tokens to fuel Chthonian Nightmare's sacrifice cost. Finally, Chthonian Nightmare recycles Aftermath Analyst back from the graveyard—refunding your energy and milling you deeper into your library along the way—allowing you to repeat the entire cycle indefinitely.