Danitha, Benalia's Hope + Altar of Dementia + Gift of Immortality

Danitha, Benalia's Hope

Altar of Dementia

Gift of Immortality

How it works

1. Activate Altar of Dementia by sacrificing Danitha.
2. When Danitha dies, Gift of Immortality triggers, returning Danitha from your graveyard to the battlefield tapped.
3. When Danitha enters the battlefield, it triggers, returning Gift of Immortality 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.