Verdant Succession, Elvish Soultiller, and Altar of Dementia

Prerequisites

• Verdant Succession on the battlefield
• Elvish Soultiller on the battlefield
• Altar of Dementia on the battlefield

Steps

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

Results

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill