Verdant Succession + Elvish Soultiller + Altar of Dementia

Verdant Succession

Elvish Soultiller

Altar of Dementia

How it works

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