Rhythm of the Wild, Woodfall Primus, and Altar of Dementia

Prerequisites

• Rhythm of the Wild on the battlefield
• Woodfall Primus on the battlefield
• Altar of Dementia on the battlefield
• Woodfall Primus does not have a -1/-1 counters on it

Steps

1. Activate Altar of Dementia by sacrificing Woodfall Primus
2. Woodfall Primus's persist ability triggers, returning it to the battlefield with no counters on it due to Woodfall Primus's riot ability
3. Woodfall Primus enters the battlefield, destroying target noncreature permanent
4. Resolve the Altar of Dementia's ability, causing target player to mill cards equal to Woodfall Primus' power
5. Repeat

Results

• Destroy any number of noncreature permanents
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite mill
• Infinite sacrifice triggers
• Infinite self-mill