The Enigma Jewel // Locus of Enlightenment, Deserted Temple, and Arid Archway

Prerequisites

• The Enigma Jewel // Locus of Enlightenment on the battlefield
• Deserted Temple on the battlefield
• Arid Archway on the battlefield

Steps

1. Activate Arid Archway by tapping it, adding Activate Deserted Temple's second ability by paying and tapping it, targeting itself
2. Locus of Enlightenment triggers, copying Deserted Temple's ability, targeting Arid Archway
3. Resolve both Deserted Temple abilities, untapping it and Arid Archway
4. Repeat

Results

• Infinite untap of lands you control
• Infinite mana lands you control can produce
• Infinite colorless mana