Lurrus of the Dream-Den + Kaya's Ghostform + Pitiless Plunderer + Altar of Dementia

Lurrus of the Dream-Den

Kaya's Ghostform

Pitiless Plunderer

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing Lurrus of the Dream-Den.
2. When Lurrus of the Dream-Den dies, Kaya's Ghostform and Pitiless Plunderer trigger.
3. Resolve the Kaya's Ghostform trigger, returning Lurrus of the Dream-Den from your graveyard to the battlefield.
4. Resolve the Pitiless Plunderer trigger, creating a Treasure token.
5. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Lurrus of the Dream-Den's power.
6. Activate the Treasure by tapping and sacrificing it, adding .
7. Cast Kaya's Ghostform from your graveyard by paying , attaching it to Lurrus of the Dream-Den.
8. Repeat.

This cunning loop turns the graveyard into your personal antechamber, powered entirely by a clever loop of life and resurrection. Pitiless Plunderer acts as the engine's silent accountant, providing a fresh Treasure token every time a creature meets its end so you can immediately pay for Kaya's Ghostform. Meanwhile, Altar of Dementia gnaws away at your opponent's library with every sacrifice, milling cards equal to the sacrificed creature's power. It all ties together because Lurrus of the Dream-Den not only fuels the sacrifice cost itself, but its own static ability allows you to cast Kaya's Ghostform straight back out of the graveyard to restart the cycle anew.