Patron of the Moon, Spelunking, and Arid Archway

Prerequisites

• Patron of the Moon on the battlefield
• Spelunking on the battlefield
• Arid Archway in hand
• Archelos is untapped
• available

Steps

1. Activate Patron of the Moon by paying , putting Arid Archway from your hand onto the battlefield untapped due to Spelunking
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