Ultron, Artificial Malevolence, Voltaic Construct, and Gilded Lotus

Prerequisites

• Ultron, Artificial Malevolence on the battlefield
• Voltaic Construct on the battlefield
• Gilded Lotus in hand
• available

Steps

1. Cast Gilded Lotus by paying its mana cost
2. When Gilded Lotus enters, Ultron triggers
3. Holding priority, activate Gilded Lotus by tapping it, adding three mana of any color
4. Resolve the Ultron trigger, causing you to pay to create a copy of Gilded Lotus that is a 2/2 Robot Villain creature
5. During your next turn, activate the Gilded Lotus token by tapping it, adding three mana of any color Activate Voltaic Construct by paying , untapping the Gilded Lotus token
6. Repeat from step 5

Results

• Infinite colored mana