Disa the Restless + Mimic Vat + Altar of Dementia

Disa the Restless

Mimic Vat

Altar of Dementia

How it works

1. Activate Altar of Dementia by sacrificing a nontoken Lhurgoyf.
2. When the Lhurgoyf dies, Mimic Vat triggers, exiling the Lhurgoyf from your graveyard and returning the Lhurgoyf that was exiled to your graveyard.
3. Disa's first ability triggers, putting the Lhurgoyf from your graveyard onto the battlefield.
4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to the sacrificed Lhurgoyf's power.
5. Repeat.