Emeria Shepherd + Aftermath Analyst + Amulet of Vigor + Coastal Hornclaw

Emeria Shepherd

Aftermath Analyst

Amulet of Vigor

Coastal Hornclaw

How it works

1. Activate any number of lands by tapping them, adding at least 3.
2. Activate Coastal Hornclaw by sacrificing a land.
3. Repeat step 2 until you control no lands.
4. Activate Aftermath Analyst by paying 3 and sacrificing it, returning all lands from your graveyard to the battlefield tapped.
5. When the lands enter, Emeria Shepherd and Amulet of Vigor trigger that many times.
6. Resolve all Amulet of Vigor triggers, untapping each land that entered.
7. Resolve an Emeria Shepherd trigger that was triggered by a Plains, returning Aftermath Analyst from your graveyard to the battlefield.
8. Resolve all other Emeria Shepherd triggers, returning any number of nonland permanents from your graveyard to either your hand or the battlefield.
9. Repeat.

This recursive loop relies on feeding your own lands to Coastal Hornclaw's activation cost until your graveyard is flush with real estate, leaving Aftermath Analyst ready to sweep them all back onto the battlefield. As those lands enter the battlefield tapped, Amulet of Vigor steps in to immediately untap them so you can tap them again for mana, while Emeria Shepherd triggers on every single land drop to turn those entries into direct-to-battlefield returns if the land is a Plains. Because Aftermath Analyst itself gets fished right back out of the graveyard by that very Emeria Shepherd trigger, you can keep sacrificing the Analyst to restart the whole engine, generating infinite mana, landfall triggers, and total recursive recovery for every nonland permanent in your graveyard.