Woodfall Primus, Rhythm of the Wild, and Ashnod's Altar

Prerequisites

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

Steps

1. Activate Ashnod's Altar by sacrificing Woodfall Primus, adding
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. Repeat

Results

• Destroy any number of noncreature permanents
• Infinite colorless mana
• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers