Patron of the Moon + Spelunking + Arid Archway
Patron of the Moon
Spelunking
Arid Archway
Requires
Patron of the Moon must be on the battlefield.
Spelunking must be on the battlefield.
Arid Archway must be in hand.
Archelos is untapped.
Mana needed: 
Steps
- Activate Patron of the Moon by paying , putting Arid Archway from your hand onto the battlefield untapped due to Spelunking.
- When Arid Archway enters the battlefield, it triggers.
- Holding priority, activate Arid Archway by tapping it, adding .
- Resolve the Arid Archway trigger from step 2, returning it from the battlefield to your hand.
- Repeat.
Results
Infinite colorless mana. Infinite landfall triggers.
Archelos, Lagoon Mystic
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