The Enigma Jewel // Locus of Enlightenment, Deserted Temple, and Matzalantli, the Great Door // The Core

Prerequisites

• The Enigma Jewel // Locus of Enlightenment on the battlefield
• Deserted Temple on the battlefield
• Matzalantli, the Great Door // The Core on the battlefield
• You have at least two permanent cards in your graveyard

Steps

1. Activate The Core by tapping it, adding at least two mana of any color
2. Activate Deserted Temple's second ability by paying and tapping it, targeting itself
3. Locus of Enlightenment triggers, copying Deserted Temple's ability, targeting The Core
4. Resolve both Deserted Temple abilities, untapping it and The Core
5. Repeat

Results

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