Patron of the Moon, Amulet of Vigor, and Arid Archway

Prerequisites

• Patron of the Moon on the battlefield
• Amulet of Vigor on the battlefield
• Arid Archway in hand
• available

Steps

1. Activate Patron of the Moon by paying , putting Arid Archway from your hand onto the battlefield
2. When Arid Archway enters the battlefield, it and Amulet of Vigor trigger
3. Resolve the Amulet of Vigor trigger, untapping Arid Archway
4. Activate Arid Archway by tapping it, adding
5. Resolve the Arid Archway trigger from step 2, returning it from the battlefield to your hand
6. Repeat

Results

• Infinite colorless mana
• Infinite landfall triggers