Voltaic Construct, The Blackstaff of Waterdeep, and Nyx Lotus

Prerequisites

• Voltaic Construct on the battlefield
• The Blackstaff of Waterdeep on the battlefield
• Nyx Lotus on the battlefield
• Nyx Lotus does not have summoning sickness
• You have at least three devotion to any color
• if you have at least three devotion to blue, or available otherwise available

Steps

1. Activate Nyx Lotus by tapping it, adding at least
2. Activate The Blackstaff of Waterdeep by paying and tapping it, causing Nyx Lotus to become an artifact creature until end of turn
3. Activate Voltaic Construct by paying , untapping Nyx Lotus
4. Activate Nyx Lotus by tapping it, adding at least
5. Repeat from step 3

Results

• Infinite mana among colors with which you have devotion
• Infinite untap of artifact creatures you control