Voltaic Construct, The Blackstaff of Waterdeep, and Pyramid of the Pantheon

Prerequisites

• Voltaic Construct on the battlefield
• The Blackstaff of Waterdeep on the battlefield
• Pyramid of the Pantheon on the battlefield
• Pyramid of the Pantheon does not have summoning sickness and has at least three brick counters on it
• available

Steps

1. Activate Pyramid of the Pantheon's second ability by tapping it, adding
2. Activate The Blackstaff of Waterdeep by paying and tapping it, causing Pyramid of the Pantheon to become an artifact creature until end of turn
3. Activate Voltaic Construct by paying , untapping Pyramid of the Pantheon
4. Activate Pyramid of the Pantheon's second ability by tapping it, adding three mana of any color
5. Repeat from step 3

Results

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