The Enigma Jewel // Locus of Enlightenment, Deserted Temple, and Serra's Sanctum

Prerequisites

• The Enigma Jewel // Locus of Enlightenment on the battlefield
• Deserted Temple on the battlefield
• Serra's Sanctum on the battlefield
• You control at least two enchantments

Steps

1. Activate Serra's Sanctum by tapping it, adding at least
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 Serra's Sanctum
4. Resolve both Deserted Temple abilities, untapping it and Serra's Sanctum
5. Repeat

Results

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