Patron of the Moon, Archelos, Lagoon Mystic, and Arid Archway

Prerequisites

• Patron of the Moon on the battlefield
• Archelos, Lagoon Mystic 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 untapped due to Archelos
2. When Arid Archway enters the battlefield, it triggers
3. Holding priority, activate Arid Archway by tapping it, adding
4. Resolve the Arid Archway trigger from step 2, returning it from the battlefield to your hand
5. Repeat

Results

• Infinite colorless mana
• Infinite landfall triggers