Squandered Resources + Aftermath Analyst + Chthonian Nightmare + Springheart Nantuko

Squandered Resources

Aftermath Analyst

Chthonian Nightmare

Springheart Nantuko

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, Springheart Nantuko 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 loop transforms a graveyard full of land and creatures into an infinite engine by feeding Squandered Resources to aggressively churn through your mana base. That mass sacrifice fills your graveyard and triggers Springheart Nantuko to flood the board with tokens every time Aftermath Analyst brings those lands back to the battlefield tapped. Meanwhile, Chthonian Nightmare acts as the recursive glue, using its energy generation to constantly sacrifice and replay Aftermath Analyst while bouncing safely back to your hand to be recast.