Stalwart Successor, Altar of Dementia, and Rendclaw Trow

Prerequisites

• Stalwart Successor on the battlefield
• Altar of Dementia on the battlefield
• Rendclaw Trow on the battlefield

Steps

1. Activate Altar of Dementia by sacrificing Rendclaw Trow When Rendclaw Trow dies, its persist ability triggers, returning it from your graveyard to the battlefield with a -1/-1 counter on it
2. When Rendclaw Trow enters, Stalwart Successor triggers, putting a +1/+1 counter on Rendclaw Trow Resolve the Altar of Dementia ability
3. Repeat

Results

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