Cacophodon, Legolas's Quick Reflexes, and Citanul Hierophants

Prerequisites

• Cacophodon on the battlefield
• Legolas's Quick Reflexes in hand
• Citanul Hierophants on the battlefield
• available

Steps

1. Cast Legolas's Quick Reflexes by paying , targeting Cacophodon
2. Activate Cacophodon by tapping it
3. Cacophodon triggers, dealing damage equal to its power to itself
4. Cacophodon triggers, untapping itself
5. Repeat from step 2

Results

• Infinite green mana