Voltaic Construct, Gilded Lotus, and Toymaker

Prerequisites

• Voltaic Construct on the battlefield
• Gilded Lotus on the battlefield
• Toymaker on the battlefield
• Toymaker does not have summoning sickness
• You have at least one card in hand
• Gilded Lotus does not have summoning sickness
• available

Steps

1. Activate Toymaker by paying , tapping it and discarding a card, causing Gilded Lotus to become an artifact creature until end of turn
2. Activate Gilded Lotus by tapping it, adding three mana of any one color
3. Activate Voltaic Construct by paying , untapping Gilded Lotus
4. Repeat from step 2

Results

• Infinite colored mana