Triumph of Saint Katherine, Verdant Succession, Painter's Servant, and Altar of Dementia

Prerequisites

• Triumph of Saint Katherine on the battlefield
• Verdant Succession on the battlefield
• Painter's Servant on the battlefield
• Altar of Dementia on the battlefield
• "Green" chosen with Painter's Servant

Steps

1. Activate Altar of Dementia by sacrificing Triumph of Saint Katherine
2. Triumph of Saint Katherine dies, triggering itself and Verdant Succession
3. Resolve the Triumph of Saint Katherine trigger, exiling it and the top six cards of your library into a face-down pile, then shuffling that pile and putting it on top of your library
4. Resolve the Verdant Succession trigger, searching your library for Triumph of Saint Katherine and putting it onto the battlefield
5. Resolve the Altar of Dementia ability from step 1, causing target player to mill cards equal to Triumph of Saint Katherine's power
6. Repeat

Results

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