Emeria Shepherd + Aftermath Analyst + Tiller Engine + Coastal Hornclaw

Emeria Shepherd

Aftermath Analyst

Tiller Engine

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 Tiller Engine trigger that many times.
6. Resolve all Tiller Engine 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 loop turns your graveyard into a perpetual engine of resurrection and value, fueled by carefully cycling lands in and out of play. You start by sacrificing lands to Coastal Hornclaw until your board is clear, feeding the graveyard before you crack Aftermath Analyst to flood the battlefield with every single land you just put there. Because those lands enter tapped, Tiller Engine steps in to instantly untap them so you can retain your mana availability while triggering a massive wave of landfall. That landfall is caught by Emeria Shepherd, whose ability lets you use those entering Plains to pull Aftermath Analyst straight back from the graveyard to the battlefield, ready to start the cycle all over again.