Verdant Succession + Emrakul, the Aeons Torn + Altar of Dementia + Painter's Servant

Verdant Succession

Emrakul, the Aeons Torn

Altar of Dementia

Painter's Servant

How it works

1. Activate Altar of Dementia by sacrificing Emrakul.
2. Emrakul and Verdant Succession trigger.
3. Resolve the Emrakul trigger, shuffling your graveyard into your library.
4. Resolve the Verdant Succession trigger, searching your library for Emrakul, putting it onto the battlefield and shuffling your library.
5. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Emrakul's power.
6. Repeat.