Patron of the Moon, Spelunking, and Selesnya Sanctuary

Prerequisites

• Patron of the Moon on the battlefield
• Spelunking on the battlefield
• Selesnya Sanctuary in hand
• available

Steps

1. Pay to activate Patron of the Moon, putting Selesnya Sanctuary from your hand onto the battlefield untapped due to Spelunking
2. When Selesnya Sanctuary enters, it triggers
3. Activate Selesnya Sanctuary by tapping it, adding two mana
4. Resolve Selesnya Sanctuary's triggered ability, returning it from the battlefield to your hand
5. Repeat

Results

• Infinite green mana
• Infinite landfall triggers
• Infinite white mana
• Infinite card draw
• Infinite draw triggers