Voltaic Construct, Priest of Titania, and Liquimetal Torque

Prerequisites

• Voltaic Construct on the battlefield
• Priest of Titania on the battlefield
• Liquimetal Torque on the battlefield
• Priest of Titania does not have summoning sickness
• There are at least three Elves on the battlefield

Steps

1. Activate Liquimetal Torque's second ability by tapping it, causing Priest of Titania to become an artifact until end of turn
2. Activate Priest of Titania by tapping it, adding at least
3. Activate Voltaic Construct by paying , untapping Priest of Titania
4. Repeat from step 2

Results

• Infinite green mana
• Infinite untap of artifact creatures you control