Squandered Resources + Aftermath Analyst + Chthonian Nightmare + Emeria Angel

Squandered Resources

Aftermath Analyst

Chthonian Nightmare

Emeria Angel

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, Emeria Angel 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 clever loop turns your entire land base into a self-sustaining engine by feeding Squandered Resources to aggressively churn through your deck and ramp your mana. When you unleash Aftermath Analyst's sacrifice ability, every land in your graveyard rushes back to the battlefield simultaneously, which in turn causes Emeria Angel to flood the board with a sky-high count of flying Bird tokens. You can then leverage Chthonian Nightmare's energy generation and recursion to repeatedly pull Aftermath Analyst right back out of the graveyard, resetting the whole cycle while continually building up an inexhaustible supply of resources.