Danitha, Benalia's Hope + Altar of Dementia + False Demise

Danitha, Benalia's Hope

Altar of Dementia

False Demise

How it works

1. Activate Altar of Dementia by sacrificing Danitha.
2. When Danitha dies, False Demise triggers, returning Danitha from your graveyard to the battlefield tapped.
3. When Danitha enters the battlefield, it triggers, returning False Demise from your graveyard to the battlefield attached to Danitha.
4. Resolve the Altar of Dementia ability, causing target player to mill cards equal to Danitha's power.
5. Repeat.