The Enigma Jewel // Locus of Enlightenment, Voltaic Key, and Firemind Vessel

Prerequisites

• The Enigma Jewel // Locus of Enlightenment on the battlefield
• Voltaic Key on the battlefield
• Firemind Vessel on the battlefield

Steps

1. Activate Firemind Vessel by tapping it, two mana of different colors
2. Activate Voltaic Key by paying and tapping it, targeting Firemind Vessel
3. Locus of Enlightenment triggers, copying Voltaic Key's ability, targeting Voltaic Key
4. Resolve both Voltaic Key abilities, untapping it and Firemind Vessel
5. Repeat

Results

• Infinite colored mana
• Infinite mana artifacts you control can produce
• Infinite untap of artifacts you control